Lauren Massingham, M.D.
Clinical Genetics (M.D.) Physician · Boston, MA
Lauren Massingham, M.D. is a clinical genetics (m.d.) physician with a practice address in Boston, Massachusetts, and NPI 1417000357, issued on Jan 22, 2007. Check the license (Massachusetts 239382, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Lauren Massingham
- Credential
- M.D.
- Primary taxonomy
- Clinical Genetics (M.D.) Physician 207SG0201X
- License numbers
- 239382 MA
MD14125 RI
Self-reported in NPPES; status is on the state search - Practice location
- 300 Longwood Ave, Boston, MA 02115
- Phone
- (617) 355-6000
- Enumerated
- Jan 22, 2007
- Record last updated
- Feb 21, 2025
- Entity
- Type 1 · individual
8 nearest clinical genetics (m.d.) physician records → All 56 in Massachusetts → Look up another NPI →
Also registered at 300 Longwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lauren Massingham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 239382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average clinical genetics (m.d.) physician in 2024
13 Medicare Part D claims, against an average of 59 among the 193 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chenodal11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Lauren Massingham among 56 clinical genetics (m.d.) physician records in Massachusetts
Lauren Massingham, M.D. is one of 56 clinical genetics (m.d.) physician records with a practice address in Massachusetts. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 59% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Genetics (M.D.) Physician providers in Massachusetts
There are 56 clinical genetics (m.d.) physician records in Massachusetts.
All 56 in Massachusetts → Every provider in Boston → Clinical Genetics (M.D.) Physician nationwide →
The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes
- Wendy Chung, MDBoston, MA 021151972578540
- Gerald Cox, MD, PHDBoston, MA 021151811955479
- David Harris, MDBoston, MA 021151770546855
- Jodi Hoffman, M.D.Boston, MA 021151871605360
- Ingrid Holm, MDBoston, MA 021151356306914
- Amy Kritzer, MDBoston, MA 021151700044336
- Helen Lyon, MDBoston, MA 021151659362309
- Edward Neilan, MD, PHDBoston, MA 021151245297480
Common questions
What is Lauren Massingham, M.D.'s NPI number?
Lauren Massingham, M.D.'s National Provider Identifier (NPI) is 1417000357, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Massingham, M.D. located?
The NPPES record lists a practice address at 300 Longwood Ave, Boston, MA, 02115. Phone: (617) 355-6000. Providers update this record themselves, so call before visiting.
How can I verify Lauren Massingham, M.D.'s license?
NPPES lists Massachusetts license number 239382, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lauren Massingham, M.D. prescribe under Medicare Part D?
In 2024, Lauren Massingham, M.D. had 13 Medicare Part D claims; the average among clinical genetics (m.d.) physician prescribers was 59. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.