Michael Assefa, MD
NPI 1457849333 · Hospitalist Physician · Hattiesburg, MS
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Assefa, MD is a Hospitalist Physician provider in Hattiesburg, MS (NPI 1457849333).
Provider details
- NPI number
- 1457849333
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36603 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
459 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 383 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 60 | $115 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 | $128 |
Typical Medicare-allowed amounts for these services range $79–$128 (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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 45 | 29 |
| Apixabanbrand: Eliquis | 21 | — |
| Prednisone | 17 | 12 |
| Amlodipine Besylate | 17 | 14 |
| Furosemide | 17 | 15 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 15 | 13 |
| Levothyroxine Sodium |
Practice location
Mailing address
Additional practice locations (2)
- 593 Eddy StProvidence, RI 02903-4923Phone: (401) 444-8450
- 855 N Westhaven DrOshkosh, WI 54904-7668Phone: (920) 303-8700
Registry dates
- Enumerated
- 2018-04-26
- Last updated
- 2026-04-21
- Certified
- 2026-04-21
Frequently asked questions
- What is Michael Assefa's NPI number?
- Michael Assefa's National Provider Identifier (NPI) is 1457849333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Assefa's specialty?
- Michael Assefa is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Assefa located?
- Michael Assefa's practice location on file with NPPES is 415 S 28th Ave, Hattiesburg, MS 39401-7246.
- What is Michael Assefa's phone number?
- The practice phone number listed in the NPPES registry for Michael Assefa is (601) 288-4329.
- Does Michael Assefa accept Medicare?
- Michael Assefa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Assefa's NPI active?
- Yes — Michael Assefa's NPI (1457849333) is active in the NPPES registry as of the last update on 2026-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.