Dennis H. Rapa, MD
Internal Medicine Physician · Natick, MA
Dennis H. Rapa, MD is an internal medicine physician with a practice address in Natick, Massachusetts, and NPI 1730142761, issued on Apr 10, 2006. Check the license (Massachusetts 44620, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Dennis H. Rapa
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 44620 MA
Self-reported in NPPES; status is on the state search - Practice location
- 67 Union St, Natick, MA 01760
- Phone
- (508) 665-0073
- Enumerated
- Apr 10, 2006
- Record last updated
- Aug 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (508) 653-4075
- Medicaid ID
- 3166821 MA
- Medicare enrollment
- Enrolled (PECOS I20051208000091); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 67 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Johanne Agne, NPAdult Health Nurse Practitioner1710022496
- Susan Almy, NPNurse Practitioner1598945594
- Lisa Ayles, ATCAthletic Trainer1508827957
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- Robert Berkowitz, M.D.Psychiatry Physician1538183504
- Kristen Bernstein, NPFamily Nurse Practitioner1205948676
Verify Dennis H. Rapa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 44620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,765 Medicare Part D claims for 176 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.
Most prescribed
- Jardiance136 claims
- Levothyroxine Sodium126 claims
- Metformin Hcl104 claims
- Januvia89 claims
- Ozempic87 claims
- Mounjaro82 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.
Industry payments in 2024: $24.73
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Charles River Medical Associates, PCNatick, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis H. Rapa among 6,825 internal medicine physician records in Massachusetts
Dennis H. Rapa, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1973 · median 2004 among the 4,103 with a school on file
- Record last updated2010 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 internal medicine physician records list a practice address in Natick
They are 22 of the 1,154 NPPES records with a practice address in Natick, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Natick → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kathlyne Anderson, MDNatick, MA 017601982669925
- Prakash Bandari, M.D.Natick, MA 017601407812084
- Karen-Gail Brandse, MDNatick, MA 017601588645790
- David Gdula, MDNatick, MA 017601558382705
- L Kaplan, MDNatick, MA 017601992826648
- Raul Laguarda, MDNatick, MA 017601427013242
- Simone Mordas, MDNatick, MA 017601073507984
- Wendy Parker, M.D.Natick, MA 017601013087659
Common questions
What is Dennis H. Rapa, MD's NPI number?
Dennis H. Rapa, MD's National Provider Identifier (NPI) is 1730142761, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dennis H. Rapa, MD located?
The NPPES record lists a practice address at 67 Union St, Natick, MA, 01760. Phone: (508) 665-0073. Providers update this record themselves, so call before visiting.
How can I verify Dennis H. Rapa, MD's license?
NPPES lists Massachusetts license number 44620, 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 Dennis H. Rapa, MD prescribe under Medicare Part D?
In 2024, Dennis H. Rapa, MD had 1,765 Medicare Part D claims for 176 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.