Diane London, M.D.
NPI 1629017710 · Internal Medicine Physician · Needham, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane London, M.D. is a Internal Medicine Physician provider in Needham, MA (NPI 1629017710).
Provider details
- NPI number
- 1629017710
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 77628 (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
20 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
1,925 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 316 | $68 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 265 | $52 |
| Complex Chronic Care Management Services for Two Or More Chronic Conditions, Each Additional 60 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99489 | 179 | $79 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 167 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 136 | $196 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 160 | 38 |
| Levothyroxine Sodium | 109 | 27 |
| Losartan Potassium | 96 | 26 |
| Omeprazole | 56 | 15 |
| Lisinopril | 55 | 14 |
| Amlodipine Besylate | 50 | 13 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2009-09-16
Frequently asked questions
- What is Diane London's NPI number?
- Diane London's National Provider Identifier (NPI) is 1629017710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane London's specialty?
- Diane London is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diane London located?
- Diane London's practice location on file with NPPES is 17 Oak St, Needham, MA 02492-2470.
- What is Diane London's phone number?
- The practice phone number listed in the NPPES registry for Diane London is (781) 559-0540.
- Does Diane London accept Medicare?
- Diane London is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane London's NPI active?
- Yes — Diane London's NPI (1629017710) is active in the NPPES registry as of the last update on 2009-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.