Joseph Mosak, M.D.
NPI 1922261460 · Rheumatology Physician · Staten Island, NY
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Mosak, M.D. is a Rheumatology Physician provider in Staten Island, NY (NPI 1922261460).
Provider details
- NPI number
- 1922261460
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 261234 (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
17 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
1,278 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 | 467 | $148 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 360 | $19 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 186 | $17 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 101 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 60 | $249 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 418 | 69 |
| Prednisone | 308 | 83 |
| Hydroxychloroquine Sulfate | 199 | 67 |
| Meloxicam | 129 | 39 |
| Adalimumabbrand: Humira(cf) Pen | 104 | 12 |
| Diclofenac Sodium | 69 | 21 |
| Leflunomide | 62 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-03
- Last updated
- 2013-06-27
Frequently asked questions
- What is Joseph Mosak's NPI number?
- Joseph Mosak's National Provider Identifier (NPI) is 1922261460, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Mosak's specialty?
- Joseph Mosak is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Mosak located?
- Joseph Mosak's practice location on file with NPPES is 1534 Victory Blvd, Staten Island, NY 10314-3548.
- What is Joseph Mosak's phone number?
- The practice phone number listed in the NPPES registry for Joseph Mosak is (718) 447-0055.
- Does Joseph Mosak accept Medicare?
- Joseph Mosak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Mosak's NPI active?
- Yes — Joseph Mosak's NPI (1922261460) is active in the NPPES registry as of the last update on 2013-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.