Diana Sustar, MD
NPI 1659500825 · Obstetrics & Gynecology Physician · Glens Falls, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Sustar, MD is a Obstetrics & Gynecology Physician provider in Glens Falls, NY (NPI 1659500825).
Provider details
- NPI number
- 1659500825
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 268628 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
37 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) |
|---|---|---|
| Ultrasound Scan of Uterus, Ovaries, Tubes, Cervix and Pelvic Area Through Vagina76830 | 19 | $82 |
| Complete Ultrasound Scan of Pelvis76856 | 18 | $69 |
Typical Medicare-allowed amounts for these services range $69–$82 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 81 | 33 |
| Clobetasol Propionate | 53 | 32 |
| Alendronate Sodium | 33 | 12 |
| Mirabegronbrand: Myrbetriq | 30 | — |
| Estradiolbrand: Yuvafem | 15 | — |
| Medroxyprogesterone Acetate | 13 | — |
| Fluconazole | 13 | — |
| Fezolinetantbrand: Veozah |
Practice location
Mailing address
Additional practice locations (1)
- 1299 Route 9Gansevoort, NY 12831-1560Phone: (518) 761-6961Fax: (518) 761-1006
Registry dates
- Enumerated
- 2009-07-09
- Last updated
- 2026-03-13
- Certified
- 2026-03-13
Frequently asked questions
- What is Diana Sustar's NPI number?
- Diana Sustar's National Provider Identifier (NPI) is 1659500825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Sustar's specialty?
- Diana Sustar is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Sustar located?
- Diana Sustar's practice location on file with NPPES is 90 South St, Glens Falls, NY 12801-4328.
- What is Diana Sustar's phone number?
- The practice phone number listed in the NPPES registry for Diana Sustar is (518) 792-7841.
- Does Diana Sustar accept Medicare?
- Diana Sustar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Sustar's NPI active?
- Yes — Diana Sustar's NPI (1659500825) is active in the NPPES registry as of the last update on 2026-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.