Michael Walger, MD
NPI 1225142110 · Emergency Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Walger, MD is a Emergency Medicine Physician provider in Boston, MA (NPI 1225142110).
Provider details
- NPI number
- 1225142110
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 218547 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1,101 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 343 | $170 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 241 | $108 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 132 | $108 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 91 | $153 |
| Critical Care, First 30-74 Minutes99291 | 67 | $208 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 251 | 46 |
| Gabapentin | 233 | 38 |
| Atorvastatin Calcium | 223 | 42 |
| Apixabanbrand: Eliquis | 218 | 22 |
| Amlodipine Besylate | 170 | 30 |
| Furosemide | 132 | 17 |
| Mirtazapine | 129 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-18
- Last updated
- 2023-12-15
- Certified
- 2022-01-21
Frequently asked questions
- What is Michael Walger's NPI number?
- Michael Walger's National Provider Identifier (NPI) is 1225142110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Walger's specialty?
- Michael Walger is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Walger located?
- Michael Walger's practice location on file with NPPES is Mgh, Boston, MA 02114.
- What is Michael Walger's phone number?
- The practice phone number listed in the NPPES registry for Michael Walger is (617) 724-0288.
- Does Michael Walger accept Medicare?
- Michael Walger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Walger's NPI active?
- Yes — Michael Walger's NPI (1225142110) is active in the NPPES registry as of the last update on 2023-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.