Mitchell S. Rein, M.D.
Reproductive Endocrinology Physician · Danvers, MA
Mitchell S. Rein, M.D. is a reproductive endocrinology physician with a practice address in Danvers, Massachusetts, and NPI 1306810429, issued on Feb 15, 2006. Check the license (Massachusetts 56895, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mitchell S. Rein
- Credential
- M.D.
- Primary taxonomy
- Reproductive Endocrinology Physician 207VE0102X
- License numbers
- 56895 MA
56895 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hutchinson Dr, Danvers, MA 01923
- Phone
- (978) 739-6920
- Enumerated
- Feb 15, 2006
- Record last updated
- Jul 17, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 3020631 MA
- Medicare enrollment
- Enrolled (PECOS I20040615000671); accepts Medicare assignment
- Medical or professional school
- Duke University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest reproductive endocrinology physician records → All 69 in Massachusetts → Look up another NPI →
Also registered at 1 Hutchinson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marybeth Baker, APRN, BCAdult Health Nurse Practitioner1972515583
- Stephanie Barbeau, N.P.Nurse Practitioner1417957762
- Melissa Brady, MSW, LICSW, CSW-GClinical Social Worker1649419110
- Kristy Cahill, M.D.Internal Medicine Physician1528228608
- Christine Call, FNP-CFamily Nurse Practitioner1083420905
- Ruili Gu, M.D.Internal Medicine Physician1104858851
Verify Mitchell S. Rein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 56895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Massachusetts General Physicians Organization IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mitchell S. Rein among 69 reproductive endocrinology physician records in Massachusetts
Mitchell S. Rein, M.D. 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 fileYes · 43% of these records are
- Graduated1983 · median 1989 among the 29 with a school on file
- Record last updated2007 · 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.
All 69 in Massachusetts → Every provider in Danvers → Reproductive Endocrinology Physician nationwide →
The 8 reproductive endocrinology physician records with the nearest ZIP codes
- R. Ian Hardy, M.D., PH.D.Reading, MA 018671457445256
- Joseph Hill, M.D.Reading, MA 018671821182635
- Tamar MatitashviliReading, MA 018671285040923
- Amir Mor, MDReading, MA 018671427481761
- John Petrozza, MDReading, MA 018671871574285
- Beth Plante, M.D.Reading, MA 018671245259654
- Danielle Vitiello, PHD, MDReading, MA 018671992794085
- Robert Weiss, M.D.Reading, MA 018671164405130
Common questions
What is Mitchell S. Rein, M.D.'s NPI number?
Mitchell S. Rein, M.D.'s National Provider Identifier (NPI) is 1306810429, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell S. Rein, M.D. located?
The NPPES record lists a practice address at 1 Hutchinson Dr, Danvers, MA, 01923. Phone: (978) 739-6920. Providers update this record themselves, so call before visiting.
How can I verify Mitchell S. Rein, M.D.'s license?
NPPES lists Massachusetts license number 56895, 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.