Healthcare provider profile · identity verified

Ambreen Zaman, P.A.

Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical · OAKLAND, CA · NPI 1770014367

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Ambreen Zaman, P.A. received $103.51 in general payments during 2025 across 5 reported records.

PFIZER INC. accounted for 36.5% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 9 associated products.

GlaxoSmithKline, LLC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported TRELEGY ELLIPTA as an associated drug or biological on 131532 records involving 37148 distinct recipient NPIs. Public Medicare Part D data also shows 30 claims for Trelegy Ellipta by this doctor in 2024.

PFIZER INC. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PAXLOVID as an associated drug or biological on 24465 records involving 15715 distinct recipient NPIs. Public Medicare Part D data also shows 17 claims for Paxlovid by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$103.51

5 reported records · 4 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
PFIZER INC. Unresolved — no canonical attribution shown $37.7936.5%22025
Abbott Laboratories Unresolved — no canonical attribution shown $24.8724.0%12025
Hologic Sales and Service, LLC Unresolved — no canonical attribution shown $22.4321.7%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $18.4217.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$103.515

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
FREESTYLE LIBRE 3
Normalized: freestyle libre 3
Device Abbott Laboratories $24.87 1 2025
Source payment records
APTIMA
Normalized: aptima
Device Hologic Sales and Service, LLC $22.43 1 2025
Source payment records
ABRYSVO
Normalized: abrysvo
Biological PFIZER INC. $19.10 1 2025
Source payment records
COMIRNATY
Normalized: comirnaty
Biological PFIZER INC. $19.10 1 2025
Source payment records
PREVNAR 20
Normalized: prevnar 20
Biological PFIZER INC. $19.10 1 2025
Source payment records
NURTEC ODT
Normalized: nurtec odt
Drug PFIZER INC. $18.69 1 2025
Source payment records
ZAVZPRET
Normalized: zavzpret
Drug PFIZER INC. $18.69 1 2025
Source payment records
AREXVY
Normalized: arexvy
Biological GlaxoSmithKline, LLC. $18.42 1 2025
Source payment records
SHINGRIX
Normalized: shingrix
Biological GlaxoSmithKline, LLC. $18.42 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
GlaxoSmithKline, LLC.
Exact reporting entity; no affiliate inference
2025 TRELEGY ELLIPTA
open payments reported associated product
CMS Open Payments — General Payments
131532 supporting records · 37148 recipient NPIs · example record 1190332369
Trelegy Ellipta · 2024
Exact normalized brand match · 1 Part D row
30 suppressed by CMS
PFIZER INC.
Exact reporting entity; no affiliate inference
2025 PAXLOVID
open payments reported associated product
CMS Open Payments — General Payments
24465 supporting records · 15715 recipient NPIs · example record 1228794432
Paxlovid · 2024
Exact normalized brand match · 1 Part D row
17 17

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Atorvastatin CalciumAtorvastatin Calcium12846
Levothyroxine SodiumLevothyroxine Sodium10637
GabapentinGabapentin8425
Albuterol Sulfate HfaAlbuterol Sulfate6348
Pantoprazole SodiumPantoprazole Sodium5616
Losartan PotassiumLosartan Potassium5318
Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav5042
LisinoprilLisinopril4717
Amlodipine BesylateAmlodipine Besylate4618
Metoprolol SuccinateMetoprolol Succinate3813
AllopurinolAllopurinol37suppressed
OmeprazoleOmeprazole3715
Sertraline HclSertraline Hcl3613
Metformin HclMetformin Hcl3511
Escitalopram OxalateEscitalopram Oxalate34suppressed
AzithromycinAzithromycin3331
Citalopram HbrCitalopram Hydrobromide33suppressed
JardianceEmpagliflozin33suppressed
Fluticasone PropionateFluticasone Propionate3215
OzempicSemaglutide31suppressed
HydrochlorothiazideHydrochlorothiazide30suppressed
Montelukast SodiumMontelukast Sodium30suppressed
Trelegy ElliptaFluticasone/Umeclidin/Vilanter30suppressed
BelsomraSuvorexant27suppressed
Pravastatin SodiumPravastatin Sodium27suppressed
LovastatinLovastatin24suppressed
MethylprednisoloneMethylprednisolone2418
Wixela InhubFluticasone Propion/Salmeterol2418
AtenololAtenolol23suppressed
Bupropion XlBupropion Hcl23suppressed
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen22suppressed
Metoprolol TartrateMetoprolol Tartrate22suppressed
Rosuvastatin CalciumRosuvastatin Calcium22suppressed
SimvastatinSimvastatin18suppressed
CelecoxibCelecoxib17suppressed
FamotidineFamotidine17suppressed
PaxlovidNirmatrelvir/Ritonavir1717
Sumatriptan SuccinateSumatriptan Succinate17suppressed
Zolpidem TartrateZolpidem Tartrate17suppressed
Tamsulosin HclTamsulosin Hcl16suppressed
Tramadol HclTramadol Hcl16suppressed
Zolpidem Tartrate ErZolpidem Tartrate16suppressed
Lisinopril-HydrochlorothiazideLisinopril/Hydrochlorothiazide15suppressed
Metformin Hcl ErMetformin Hcl15suppressed
PregabalinPregabalin15suppressed
Ondansetron OdtOndansetron1411
Potassium ChloridePotassium Chloride14suppressed
AlprazolamAlprazolam13suppressed
Fluticasone-SalmeterolFluticasone Propion/Salmeterol13suppressed
Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid13suppressed
FenofibrateFenofibrate12suppressed
IbuprofenIbuprofen12suppressed
Venlafaxine Hcl ErVenlafaxine Hcl12suppressed
Dextroamphetamine-Amphet ErDextroamphetamine/Amphetamine11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $103.51 · 5 records PFIZER INC. ABRYSVO, APTIMA, AREXVY, COMIRNATY, FREESTYLE LIBRE 3, NURTEC ODT, PREVNAR 20, SHINGRIX, ZAVZPRET 2
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error