Diana Gruenstein, MD
NPI 1174263032 · Student in an Organized Health Care Education/Training Program · New York, NY
Diana Gruenstein, MD is a Student in an Organized Health Care Education/Training Program provider in New York, NY (NPI 1174263032).
Provider details
- NPI number
- 1174263032
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 68 | 15 |
| Tacrolimus | 25 | — |
| Triamcinolone Acetonide | 25 | 16 |
| Clindamycin Phosphate | 19 | — |
| Fluocinolone Acetonide | 15 | — |
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
Registry dates
- Enumerated
- 2022-03-30
- Last updated
- 2022-04-12
- Certified
- 2022-04-12
Frequently asked questions
- What is Diana Gruenstein's NPI number?
- Diana Gruenstein's National Provider Identifier (NPI) is 1174263032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Gruenstein's specialty?
- Diana Gruenstein is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Diana Gruenstein located?
- Diana Gruenstein's practice location on file with NPPES is 281 1st Ave, New York, NY 10003-2925.
- What is Diana Gruenstein's phone number?
- The practice phone number listed in the NPPES registry for Diana Gruenstein is (212) 420-2000.
- Is Diana Gruenstein's NPI active?
- Yes — Diana Gruenstein's NPI (1174263032) is active in the NPPES registry as of the last update on 2022-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.