Oscar Klein, M.D.
NPI 1962546887 · Infectious Disease Physician · New York, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oscar Klein, M.D. is a Infectious Disease Physician provider in New York, NY (NPI 1962546887).
Provider details
- NPI number
- 1962546887
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 166678 (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
19 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
147 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 126 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $72 |
Typical Medicare-allowed amounts for these services range $72–$106 (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 · 144 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 465 | 51 |
| Atorvastatin Calcium | 361 | 57 |
| Dolutegravir Sodiumbrand: Tivicay | 315 | 32 |
| Rosuvastatin Calcium | 292 | 47 |
| Amlodipine Besylate | 276 | 38 |
| Darunavir/Cobicistatbrand: Prezcobix | 241 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-16
- Last updated
- 2013-02-27
Frequently asked questions
- What is Oscar Klein's NPI number?
- Oscar Klein's National Provider Identifier (NPI) is 1962546887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oscar Klein's specialty?
- Oscar Klein is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Oscar Klein located?
- Oscar Klein's practice location on file with NPPES is 275 7th Ave Fl 12, New York, NY 10001-6708.
- What is Oscar Klein's phone number?
- The practice phone number listed in the NPPES registry for Oscar Klein is (212) 604-6513.
- Does Oscar Klein accept Medicare?
- Oscar Klein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oscar Klein's NPI active?
- Yes — Oscar Klein's NPI (1962546887) is active in the NPPES registry as of the last update on 2013-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.