Michelle Johnson, MD
NPI 1114285905 · Geriatric Medicine (Internal Medicine) Physician · Cambridge, MA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Johnson, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Cambridge, MA (NPI 1114285905).
Provider details
- NPI number
- 1114285905
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 265139 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Nursing & Custodial Care Facilities
Ambulatory Health Care Facilities
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
453 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 Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 143 | $117 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 104 | $166 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 72 | $117 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 57 | $167 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 56 | $196 |
| Nursing Facility Discharge Management, More Than 30 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 406 | 63 |
| Apixabanbrand: Eliquis | 394 | 34 |
| Metoprolol Succinate | 185 | 32 |
| Amlodipine Besylate | 177 | 31 |
| Tamsulosin Hcl | 163 | 24 |
| Levothyroxine Sodium | 154 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-30
- Last updated
- 2025-12-19
- Certified
- 2025-12-19
Frequently asked questions
- What is Michelle Johnson's NPI number?
- Michelle Johnson's National Provider Identifier (NPI) is 1114285905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Johnson's specialty?
- Michelle Johnson is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Johnson located?
- Michelle Johnson's practice location on file with NPPES is 119 Windsor St, Cambridge, MA 02139-3647.
- What is Michelle Johnson's phone number?
- The practice phone number listed in the NPPES registry for Michelle Johnson is (617) 665-3600.
- Does Michelle Johnson accept Medicare?
- Michelle Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Johnson's NPI active?
- Yes — Michelle Johnson's NPI (1114285905) is active in the NPPES registry as of the last update on 2025-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.