Harold Greenspan, M.D.
NPI 1457326076 · Internal Medicine Physician · Chestnut Hill, MA
Harold Greenspan, M.D. is a Internal Medicine Physician provider in Chestnut Hill, MA (NPI 1457326076).
Provider details
- NPI number
- 1457326076
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 71133 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 92 | 60 |
| Amlodipine Besylate | 64 | 42 |
| Lisinopril | 62 | 41 |
| Metoprolol Succinate | 52 | 34 |
| Hydrochlorothiazide | 49 | 29 |
| Losartan Potassium | 45 | 28 |
| Simvastatin | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2020-11-16
- Certified
- 2020-11-16
Frequently asked questions
- What is Harold Greenspan's NPI number?
- Harold Greenspan's National Provider Identifier (NPI) is 1457326076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Greenspan's specialty?
- Harold Greenspan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Greenspan located?
- Harold Greenspan's practice location on file with NPPES is 291 Independence Dr, Chestnut Hill, MA 02467-3628.
- What is Harold Greenspan's phone number?
- The practice phone number listed in the NPPES registry for Harold Greenspan is (617) 541-6615.
- Is Harold Greenspan's NPI active?
- Yes — Harold Greenspan's NPI (1457326076) is active in the NPPES registry as of the last update on 2020-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.