Gary Rosenbaum, MD
NPI 1437261385 · Infectious Disease Physician · Riverhead, NY
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Rosenbaum, MD is a Infectious Disease Physician provider in Riverhead, NY (NPI 1437261385).
Provider details
- NPI number
- 1437261385
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 173542 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,192 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 804 | $83 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 219 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $139 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 35 | $240 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 | $194 |
Typical Medicare-allowed amounts for these services range $83–$240 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ertapenem Sodiumbrand: Ertapenem | 35 | 12 |
| Doxycycline Monohydrate | 33 | 17 |
| Cefadroxil | 29 | — |
| Elviteg/Cob/Emtri/Tenof Alafenbrand: Genvoya | 26 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 23 | 12 |
| Doxycycline Hyclate | 23 | 12 |
| Piperacillin Sodium/Tazobactambrand: Piperacillin-Tazobactam | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$588 across 29 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gary Rosenbaum's NPI number?
- Gary Rosenbaum's National Provider Identifier (NPI) is 1437261385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Rosenbaum's specialty?
- Gary Rosenbaum is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Rosenbaum located?
- Gary Rosenbaum's practice location on file with NPPES is 887 Old Country Rd, Riverhead, NY 11901-2115.
- What is Gary Rosenbaum's phone number?
- The practice phone number listed in the NPPES registry for Gary Rosenbaum is (631) 727-6122.
- Does Gary Rosenbaum accept Medicare?
- Gary Rosenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Rosenbaum's NPI active?
- Yes — Gary Rosenbaum's NPI (1437261385) 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.