NPPES file of Aug 9, 2026

Ronald M. Lechan, M.D.

Endocrinology, Diabetes & Metabolism Physician · Boston, MA

Ronald M. Lechan, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Boston, Massachusetts, and NPI 1700824018, issued on Jun 2, 2006. Check the license (Massachusetts 41856, 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
1700824018
Name
Ronald M. Lechan
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
41856 MA
Self-reported in NPPES; status is on the state search
Practice location
750 Washington St BX 268, Boston, MA 02111
Phone
(617) 636-5689
Enumerated
Jun 2, 2006
Record last updated
Jul 13, 2026
Medicare enrollment
Enrolled (PECOS I20050725000280); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1976
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ronald M. Lechan 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 41856
    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

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82% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

465 Medicare Part D claims for 77 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Ronald Lechan465
  2. Specialty average2,630

Most prescribed

  1. Synthroid71 claims
  2. Levothyroxine Sodium62 claims
  3. Hydrocortisone58 claims
  4. Testosterone55 claims
  5. Prednisone18 claims
  6. Testosterone Cypionate16 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.

Bills Medicare through one group practice

  1. Pratt Medical Group IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ronald M. Lechan among 522 endocrinology, diabetes & metabolism physician records in Massachusetts

Ronald M. Lechan, M.D. is one of 522 endocrinology, diabetes & metabolism physician records with a practice address in Massachusetts. 82% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 52% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1976 · median 2002 among the 378 with a school on file
  • Record last updated2026 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts

There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Lisa Ceglia, M.D.Boston, MA 021111558417055
  2. Bess Dawson-Hughes, M.D.Boston, MA 021111528083714
  3. Feyza Erenler, M.D.Boston, MA 021111013395375
  4. Maya Fayfman, M.D.Boston, MA 021111851612956
  5. Andrew Greenberg, M.D.Boston, MA 021111720046956
  6. Jacqueline Kung, MDBoston, MA 021111518120872
  7. Anastassios Pittas, MDBoston, MA 021111508976036
  8. Michael Rosenblatt, M.D.Boston, MA 021111699896753

Common questions

What is Ronald M. Lechan, M.D.'s NPI number?

Ronald M. Lechan, M.D.'s National Provider Identifier (NPI) is 1700824018, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald M. Lechan, M.D. located?

The NPPES record lists a practice address at 750 Washington St BX 268, Boston, MA, 02111. Phone: (617) 636-5689. Providers update this record themselves, so call before visiting.

How can I verify Ronald M. Lechan, M.D.'s license?

NPPES lists Massachusetts license number 41856, 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 Ronald M. Lechan, M.D. prescribe under Medicare Part D?

In 2024, Ronald M. Lechan, M.D. had 465 Medicare Part D claims for 77 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.