Alexander Cohen, M.D.
NPI 1437682143 · Gynecologic Oncology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Gynecological Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Cohen, M.D. is a Gynecologic Oncology Physician provider in Chicago, IL (NPI 1437682143).
Provider details
- NPI number
- 1437682143
- Entity type
- Individual
- Primary specialty
- Gynecologic Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2021010582 (MO)
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 tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 660 S Euclid AveSaint Louis, MO 63110-1010Phone: (314) 273-1905
- 3015 N Ballas RdSaint Louis, MO 63131-2329Phone: (314) 996-5000
Registry dates
- Enumerated
- 2017-04-10
- Last updated
- 2024-08-26
- Certified
- 2024-08-26
Frequently asked questions
- What is Alexander Cohen's NPI number?
- Alexander Cohen's National Provider Identifier (NPI) is 1437682143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Cohen's specialty?
- Alexander Cohen is listed in the NPPES registry with a primary specialty of Gynecologic Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Cohen located?
- Alexander Cohen's practice location on file with NPPES is 1520 W Harrison St, Chicago, IL 60607-3106.
- What is Alexander Cohen's phone number?
- The practice phone number listed in the NPPES registry for Alexander Cohen is (800) 226-2371.
- Does Alexander Cohen accept Medicare?
- Alexander Cohen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Cohen's NPI active?
- Yes — Alexander Cohen's NPI (1437682143) is active in the NPPES registry as of the last update on 2024-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.