Michael Nelson, M.D.
NPI 1861843609 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Nelson, M.D. is a Internal Medicine Physician provider in Boston, MA (NPI 1861843609).
Provider details
- NPI number
- 1861843609
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 267597 (MA)
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
10 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
1,064 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 | 412 | $138 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 225 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 116 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 85 | $99 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 50 | $21 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 49 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 311 | 124 |
| Amlodipine Besylate | 192 | 66 |
| Lisinopril | 147 | 63 |
| Metoprolol Succinate | 100 | 43 |
| Levothyroxine Sodium | 78 | 29 |
| Omeprazole | 76 | 37 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-22
- Last updated
- 2023-06-28
- Certified
- 2023-06-28
Frequently asked questions
- What is Michael Nelson's NPI number?
- Michael Nelson's National Provider Identifier (NPI) is 1861843609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Nelson's specialty?
- Michael Nelson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Nelson located?
- Michael Nelson's practice location on file with NPPES is 50 Staniford St Fl 9, Boston, MA 02114-2506.
- What is Michael Nelson's phone number?
- The practice phone number listed in the NPPES registry for Michael Nelson is (617) 492-3500.
- Does Michael Nelson accept Medicare?
- Michael Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Nelson's NPI active?
- Yes — Michael Nelson's NPI (1861843609) is active in the NPPES registry as of the last update on 2023-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.