Michael Oppenheim, MD
NPI 1831260835 · Infectious Disease Physician · Manhasset, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Oppenheim, MD is a Infectious Disease Physician provider in Manhasset, NY (NPI 1831260835).
Provider details
- NPI number
- 1831260835
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 200119 (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
61 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 61 | $65 |
Typical Medicare-allowed amounts for these services range $65–$65 (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 |
|---|---|---|
| Methenamine Hippurate | 44 | 12 |
| Rifampin | 29 | — |
| Cephalexin | 25 | — |
| Ethambutol Hcl | 24 | — |
| Azithromycin | 21 | — |
| Levofloxacin | 17 | — |
| Ertapenem Sodiumbrand: Ertapenem | 16 | — |
| Amikacin Liposomal/Neb.accessrbrand: Arikayce | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Oppenheim's NPI number?
- Michael Oppenheim's National Provider Identifier (NPI) is 1831260835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Oppenheim's specialty?
- Michael Oppenheim is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Oppenheim located?
- Michael Oppenheim's practice location on file with NPPES is North Shore University Hospital, Manhasset, NY 11030.
- What is Michael Oppenheim's phone number?
- The practice phone number listed in the NPPES registry for Michael Oppenheim is (516) 562-4280.
- Does Michael Oppenheim accept Medicare?
- Michael Oppenheim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Oppenheim's NPI active?
- Yes — Michael Oppenheim's NPI (1831260835) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.