Shelley Rahn, MD
Gastroenterology Physician · Chicopee, MA
Shelley Rahn, MD is a gastroenterology physician with a practice address in Chicopee, Massachusetts, and NPI 1356441638, issued on Sep 25, 2006. Check the license (Massachusetts 78914, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Shelley Rahn
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 78914 MA
Self-reported in NPPES; status is on the state search - Practice location
- 444 Montgomery St, Chicopee, MA 01020
- Phone
- (413) 594-3111
- Enumerated
- Sep 25, 2006
- Record last updated
- Dec 29, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (413) 598-7826
- Medicaid ID
- 110035618A MA
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 444 Montgomery St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Suzy-Ann BakerFamily Nurse Practitioner1952051120
- Patrick Barnett, MDDiagnostic Radiology Physician1396781381
Verify Shelley Rahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 78914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
35 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Shelley Rahn among 686 gastroenterology physician records in Massachusetts
Shelley Rahn, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% 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, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Chicopee → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Mark Hirschkorn, M.D.Chicopee, MA 010201518923713
- Heidi Kolek, MDChicopee, MA 010201881667517
- Steven Samuels, M.D.Chicopee, MA 010201942267810
- Bernard Clifford, M.D.Holyoke, MA 010401972561843
- Gabriel Melki, MDHolyoke, MA 010401194247213
- Mary Norris, MDHolyoke, MA 010401881694362
- Robert WeissHolyoke, MA 010401861575953
- David Berkman, MDFlorence, MA 010621265402614
Common questions
What is Shelley Rahn, MD's NPI number?
Shelley Rahn, MD's National Provider Identifier (NPI) is 1356441638, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shelley Rahn, MD located?
The NPPES record lists a practice address at 444 Montgomery St, Chicopee, MA, 01020. Phone: (413) 594-3111. Providers update this record themselves, so call before visiting.
How can I verify Shelley Rahn, MD's license?
NPPES lists Massachusetts license number 78914, 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 Shelley Rahn, MD prescribe under Medicare Part D?
In 2024, Shelley Rahn, MD had 35 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. 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.