Isabelle Cohen, M.D.
NPI 1336409549 · Obstetrics & Gynecology Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabelle Cohen, M.D. is a Obstetrics & Gynecology Physician provider in Oakland, CA (NPI 1336409549).
Provider details
- NPI number
- 1336409549
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- P27653 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
136 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 56 | $47 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 31 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $109 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 21 | $56 |
Typical Medicare-allowed amounts for these services range $47–$133 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 72 | 35 |
| Progesterone, Micronizedbrand: Progesterone | 34 | 13 |
| Estradiolbrand: Imvexxy | 23 | — |
| Estradiolbrand: Yuvafem | 20 | — |
| Estradiolbrand: Estring | 17 | — |
| Estradiolbrand: Estradiol (twice Weekly) | 15 | — |
| Valacyclovir Hclbrand: Valacyclovir | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-22
- Last updated
- 2019-08-01
Frequently asked questions
- What is Isabelle Cohen's NPI number?
- Isabelle Cohen's National Provider Identifier (NPI) is 1336409549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabelle Cohen's specialty?
- Isabelle Cohen is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Isabelle Cohen located?
- Isabelle Cohen's practice location on file with NPPES is 365 Hawthorne Ave Ste 301, Oakland, CA 94609.
- What is Isabelle Cohen's phone number?
- The practice phone number listed in the NPPES registry for Isabelle Cohen is (410) 601-9000.
- Does Isabelle Cohen accept Medicare?
- Isabelle Cohen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabelle Cohen's NPI active?
- Yes — Isabelle Cohen's NPI (1336409549) is active in the NPPES registry as of the last update on 2019-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.