Raj Kumar Mahajan, MD
Obstetrics & Gynecology Physician · Oswego, NY
Raj Kumar Mahajan, MD is an obstetrics & gynecology physician with a practice address in Oswego, New York, and NPI 1104869957, issued on Jun 13, 2006. Check the license (New York 190331-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Raj Kumar Mahajan
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 190331-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 42 Montcalm St, Oswego, NY 13126
- Phone
- (315) 343-2590
- Enumerated
- Jun 13, 2006
- Record last updated
- Jan 14, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (315) 343-4197
- Medicaid ID
- 0160025 NY
- Medicare enrollment
- Enrolled (PECOS I20050210000578); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1991
- Entity
- Type 1 · individual
Also registered at 42 Montcalm St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Devon Amedio, CNMAdvanced Practice Midwife1972191625
- Victoria Carlson, CNM, WHNP-BCObstetrics & Gynecology Nurse Practitioner1679379259
- Venkata Dasari, M.D.Obstetrics & Gynecology Physician1467747733
- Judith Dimarco, RNFNPObstetrics & Gynecology Nurse Practitioner1629004635
- Mackenzie Mahajan, PA-CPhysician Assistant1518618677
- Ronald Uva, MDObstetrics & Gynecology Physician1932135985
Verify Raj Kumar Mahajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 190331-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.9 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
971 Medicare Part D claims for 213 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 18 claims were for opioids.
Most prescribed
- Estradiol176 claims
- Premarin50 claims
- Alendronate Sodium47 claims
- Valacyclovir46 claims
- Medroxyprogesterone Acetate45 claims
- Ibandronate Sodium32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $213.60
13 payments; by number, the most common kind was food and beverage; the largest payer was Axonics, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Oswego County OB-Gyn PCOswego, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Obstetrics & Gynecology Physician providers in New York
There are 3,174 obstetrics & gynecology physician records in New York.
Other obstetrics & gynecology physician records in New York
- Gila Aaron, M.D.New York, NY1457352965
- David Abayev, D.O.Rego Park, NY1366495517
- Maria Abbattista, MDScarsdale, NY1417019407
- Steven Abbey, MDBuffalo, NY1326267741
- Aiman Abboud, MD DOBrooklyn, NY1063511970
- Ehab Abdelmalek, MDBrooklyn, NY1366599755
- Ruqayyah Abdul-Karim, M.D.New York, NY1225561558
- Mazin Abdullah, M.DPotsdam, NY1831241629
- Ekhlas AbdulraheemWilliamsville, NY1518594795
- Sarah AbelmanBay Shore, NY1720617566
Common questions
What is Raj Kumar Mahajan, MD's NPI number?
Raj Kumar Mahajan, MD's National Provider Identifier (NPI) is 1104869957, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Raj Kumar Mahajan, MD located?
The NPPES record lists a practice address at 42 Montcalm St, Oswego, NY, 13126. Phone: (315) 343-2590. Providers update this record themselves, so call before visiting.
How can I verify Raj Kumar Mahajan, MD's license?
NPPES lists New York license number 190331-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Raj Kumar Mahajan, MD prescribe under Medicare Part D?
In 2024, Raj Kumar Mahajan, MD had 971 Medicare Part D claims for 213 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.