Katherine Obrien, MD
Obstetrics & Gynecology Physician · Paramus, NJ
Katherine Obrien, MD is an obstetrics & gynecology physician with a practice address in Paramus, New Jersey, and NPI 1033159124, issued on Jun 7, 2006. Check the license (New Jersey 25MA08957200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katherine Obrien
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 25MA08957200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 80 Eisenhower Dr, Paramus, NJ 07652
- Phone
- (201) 843-2800
- Enumerated
- Jun 7, 2006
- Record last updated
- Apr 25, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (973) 939-0273
- Medicare enrollment
- Enrolled (PECOS I20111108000702); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 2001
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,362 in New Jersey → Look up another NPI →
Also registered at 80 Eisenhower Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Nash, C.A.P.N.Nurse Practitioner1609948793
- Donna NicklesSpecialist1063400547
- Grace Qarmout, R.N. , NPCPrimary Care Nurse Practitioner1487905246
- Thomas RussoSpecialist1871581363
Verify Katherine Obrien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA08957200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
127 Medicare Part D claims for 50 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Estradiol24 claims
- Venlafaxine Hcl Er12 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: $141.01
8 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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
- Lifeline Medical Associates LLCDenville, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Obrien among 1,362 obstetrics & gynecology physician records in New Jersey
Katherine Obrien, MD is one of 1,362 obstetrics & gynecology physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2001 · median 2003 among the 900 with a school on file
- Record last updated2017 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in New Jersey
There are 1,362 obstetrics & gynecology physician records in New Jersey.
All 1,362 in New Jersey → Every provider in Paramus → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Thomas Golin, M.D.Paramus, NJ 076521831252642
- Keri Greenseid, M.D.Paramus, NJ 076521235219791
- Michele Isaacs, M.D.Paramus, NJ 076521851374326
- Sophie Ann Joseph, MDParamus, NJ 076521417410697
- Kiran Joshi, M.D.Paramus, NJ 076521215001698
- Ena Marsan, D.O.Paramus, NJ 076521013006915
- Naglaa Rizk, MD, FACOGParamus, NJ 076521144450826
- Khashayar Shakiba, MDParamus, NJ 076521114121571
Common questions
What is Katherine Obrien, MD's NPI number?
Katherine Obrien, MD's National Provider Identifier (NPI) is 1033159124, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Obrien, MD located?
The NPPES record lists a practice address at 80 Eisenhower Dr, Paramus, NJ, 07652. Phone: (201) 843-2800. Providers update this record themselves, so call before visiting.
How can I verify Katherine Obrien, MD's license?
NPPES lists New Jersey license number 25MA08957200, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Obrien, MD prescribe under Medicare Part D?
In 2024, Katherine Obrien, MD had 127 Medicare Part D claims for 50 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.