Doctor profile · Federal record

Dr. Lauren Massingham, M.D.

Clinical Genetics (M.D.) Physician · Pediatrics Physician · Clinical Genetics (M.D.) Physician · Boston, MA

  • NPI 1417000357
  • 19 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
300 Longwood Ave
Boston, MA 021155724
(617) 355-6000
Additional location
593 Eddy St
Providence, RI 029034923
(401) 444-8361
fax (401) 444-3288

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
February 21, 2025
Specialty taxonomy
207SG0201X — NUCC code
State licenses (2)
Massachusetts #239382 · Rhode Island #MD14125

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417000357. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
48
Distinct HCPCS
3
Medicare allowed
$6,221
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 20 20 $145
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $139
99214 Established patient office or other outpatient visit, 30-39 minutes 14 14 $99

In context: peer comparison

Among 4 peers in this city , average services per provider: 21. This provider delivers 2.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
0
Total drug cost
$494,496
Drug Type Claims Patients Total cost
Chenodal (Chenodiol) Brand 11 0 $494,496

Frequently asked questions

Auto-generated from federal data
What is Dr. Lauren Massingham's medical specialty?
Dr. Lauren Massingham practices Clinical Genetics (M.D.) Physician in Boston, MA.
Where does Dr. Lauren Massingham practice?
Dr. Lauren Massingham practices at 300 Longwood Ave, Boston, MA 021155724. Office phone: 6173556000.
What is Dr. Lauren Massingham's NPI?
Dr. Lauren Massingham's National Provider Identifier (NPI) is 1417000357, issued by NPPES.
What procedures does Dr. Lauren Massingham commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.