Doctor profile · Federal record

Dr. Diane London, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Needham, MA

  • NPI 1629017710
  • Accepts Medicare
  • 35 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
17 Oak St
Needham, MA 024922470
(781) 559-0540
fax (781) 559-0541
Mailing address
Po Box 187
Dover, MA 020300187

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
September 16, 2009
Year of graduation
1991 — 35 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #77628

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629017710. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,559
Distinct HCPCS
10
Medicare allowed
$121,775
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 297 58 $68
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 228 51 $52
99214 Established patient office or other outpatient visit, 30-39 minutes 128 66 $140
36415 Insertion of needle into vein for collection of blood sample 112 62 $8
99215 Established patient office or other outpatient visit, 40-54 minutes 108 49 $195
99489 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 month 84 28 $77
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 63 63 $142
G0442 Annual alcohol misuse screening, 5 to 15 minutes 63 63 $21
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 60 52 $16
88738 Hemoglobin measurement 52 48 $5

In context: peer comparison

Among 5 peers in this city , average services per provider: 82. This provider delivers 19× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
840
Patients
138
Total drug cost
$128,513
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 141 35 $2,906
Levothyroxine Sodium Generic 116 24 $3,717
Losartan Potassium Generic 92 22 $1,475
Eliquis (Apixaban) Brand 67 0 $65,698
Lisinopril Generic 62 16 $1,226
Hydrochlorothiazide Generic 50 12 $322
Omeprazole Generic 50 18 $1,367
Amlodipine Besylate Generic 44 0 $262
Simvastatin Generic 43 11 $409
Ozempic (Semaglutide) Brand 38 0 $48,689

Frequently asked questions

Auto-generated from federal data
What is Dr. Diane London's medical specialty?
Dr. Diane London practices Internal Medicine Physician in Needham, MA.
Where does Dr. Diane London practice?
Dr. Diane London practices at 17 Oak St, Needham, MA 024922470. Office phone: 7815590540.
What is Dr. Diane London's NPI?
Dr. Diane London's National Provider Identifier (NPI) is 1629017710, issued by NPPES.
Does Dr. Diane London accept Medicare assignment?
Yes. Dr. Diane London accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane London commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.