Karyn Singer
NPI 1578730859 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karyn Singer is a Internal Medicine Physician provider in New York, NY (NPI 1578730859).
Provider details
- NPI number
- 1578730859
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- D72687 (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 tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 53 | 17 |
| Metformin Hcl | 29 | — |
| Losartan Potassium | 21 | — |
| Famotidine | 20 | — |
| Amlodipine Besylate | 18 | — |
| Triamcinolone Acetonide | 18 | — |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-14
- Last updated
- 2015-03-31
Frequently asked questions
- What is Karyn Singer's NPI number?
- Karyn Singer's National Provider Identifier (NPI) is 1578730859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karyn Singer's specialty?
- Karyn Singer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karyn Singer located?
- Karyn Singer's practice location on file with NPPES is 227 Madison St, New York, NY 10002-7537.
- What is Karyn Singer's phone number?
- The practice phone number listed in the NPPES registry for Karyn Singer is (212) 238-7897.
- Does Karyn Singer accept Medicare?
- Karyn Singer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karyn Singer's NPI active?
- Yes — Karyn Singer's NPI (1578730859) is active in the NPPES registry as of the last update on 2015-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.