NPPES file of Aug 9, 2026

Kim L. Thornton, MD

Reproductive Endocrinology Physician · Waltham, MA

Kim L. Thornton, MD is a reproductive endocrinology physician with a practice address in Waltham, Massachusetts, and NPI 1992742191, issued on May 31, 2006. Check the license (Massachusetts 153109, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992742191
Name
Kim L. Thornton
Credential
MD
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License numbers
153109 MA
029664 CT
35.052652 OH
MD10471 RI
Self-reported in NPPES; status is on the state search
Practice location
130 2D Avenue, Waltham, MA 02451
Phone
(781) 434-6500
Enumerated
May 31, 2006
Record last updated
May 20, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(781) 434-6501
Medicaid ID
3088707 MA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Kim L. Thornton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 153109
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $10,380.61

17 payments; by number, the most common kind was food and beverage; the largest payer was Ferring Pharmaceuticals Inc. The 1,066 providers of this specialty with any payment received $1,086.52 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kim Thornton$10,381
  2. Specialty average$1,087

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Kim L. Thornton among 69 reproductive endocrinology physician records in Massachusetts

Kim L. Thornton, MD is one of 69 reproductive endocrinology physician records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 22% of them.

  • NPI issued2006 · 22% of these records are older, 32% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2008 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VE0102X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Reproductive Endocrinology Physician providers in Massachusetts

There are 69 reproductive endocrinology physician records in Massachusetts.

The 8 reproductive endocrinology physician records with the nearest ZIP codes

  1. Sara Arian, MD, MSCWaltham, MA 024511336495597
  2. Merle Berger, M.D.Waltham, MA 024511215974506
  3. Josette Dawkins, M.D.Waltham, MA 024511629454814
  4. Alan Penzias, M.D.Waltham, MA 024511497701866
  5. Riwa SabbaghWaltham, MA 024511831621085
  6. Rita Sneeringer, M.D.Waltham, MA 024511477509024
  7. Steven Bayer, M.D.Brookline, MA 024451154375038
  8. Selwyn Oskowitz, M.D.Brookline, MA 024451235176868

Common questions

What is Kim L. Thornton, MD's NPI number?

Kim L. Thornton, MD's National Provider Identifier (NPI) is 1992742191, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kim L. Thornton, MD located?

The NPPES record lists a practice address at 130 2D Avenue, Waltham, MA, 02451. Phone: (781) 434-6500. Providers update this record themselves, so call before visiting.

How can I verify Kim L. Thornton, MD's license?

NPPES lists Massachusetts license number 153109, 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.

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.