Manoj Nayak, DO
NPI 1538275243 · Internal Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Manoj Nayak, DO is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1538275243).
Provider details
- NPI number
- 1538275243
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 45655-21 (WI)
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
352 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 | 120 | $117 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 98 | $164 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 62 | $120 |
| Administration of Influenza Virus VaccineG0008 | 26 | $30 |
| Admn Sarscov2 Vacc 1 Dose90480 | 19 | $41 |
| Hemoglobin A1c Level83036 | 16 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 164 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 584 | 139 |
| Losartan Potassium | 460 | 126 |
| Pantoprazole Sodium | 378 | 91 |
| Amlodipine Besylate | 340 | 85 |
| Metoprolol Succinate | 296 | 75 |
| Furosemide | 276 | 65 |
| Pregabalin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-23
- Last updated
- 2025-06-05
- Certified
- 2025-06-05
Frequently asked questions
- What is Manoj Nayak's NPI number?
- Manoj Nayak's National Provider Identifier (NPI) is 1538275243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Manoj Nayak's specialty?
- Manoj Nayak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Manoj Nayak located?
- Manoj Nayak's practice location on file with NPPES is 3305 S. 20th Street, Milwaukee, WI 53215-4940.
- What is Manoj Nayak's phone number?
- The practice phone number listed in the NPPES registry for Manoj Nayak is (414) 645-1808.
- Does Manoj Nayak accept Medicare?
- Manoj Nayak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Manoj Nayak's NPI active?
- Yes — Manoj Nayak's NPI (1538275243) is active in the NPPES registry as of the last update on 2025-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.