Zachary A. Zanfes, D.O.
Internal Medicine Physician · Wareham, MA
Zachary A. Zanfes, D.O. is an internal medicine physician with a practice address in Wareham, Massachusetts, and NPI 1760829030, issued on May 28, 2013. Check the license (Massachusetts 287356, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Zachary A. Zanfes
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 287356 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Rosebrook Way, Wareham, MA 02571
- Phone
- (508) 273-4950
- Enumerated
- May 28, 2013
- Record last updated
- Oct 18, 2024
- Fax
- (508) 273-4955
- Medicare enrollment
- Enrolled (PECOS I20210720000191); accepts Medicare assignment
- Medical or professional school
- Lincoln Mem Univ, Debusk Col Of Osteopathic Med, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 100 Rosebrook Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bethany Abde, AGNP - BCAdult Health Nurse Practitioner1215331566
- Andrew Arone, MS, RDRegistered Dietitian1689407769
- Colleen Berg, N.P.Nurse Practitioner1477628527
- Bruce Brown, MDCardiovascular Disease Physician1205896362
- Alexa BrynildsenNurse Practitioner1720770886
- Victoria Cabral, DNP, AGPCNP-BCNurse Practitioner1588115356
Verify Zachary A. Zanfes in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 287356Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average internal medicine physician in 2024
3,079 Medicare Part D claims for 515 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 24 claims were for opioids.
Most prescribed
- Amlodipine Besylate202 claims
- Lisinopril142 claims
- Atorvastatin Calcium140 claims
- Rosuvastatin Calcium129 claims
- Levothyroxine Sodium121 claims
- Olmesartan Medoxomil120 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Southcoast Physicians Group IncWareham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary A. Zanfes among 6,825 internal medicine physician records in Massachusetts
Zachary A. Zanfes, D.O. 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 2013, is newer than 70% of them.
- NPI issued2013 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2013 · median 2004 among the 4,103 with a school on file
- Record last updated2024 · 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).
11 internal medicine physician records list a practice address in Wareham
They are 11 of the 298 NPPES records with a practice address in Wareham, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Wareham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Randy Caplan, D.O.Wareham, MA 025711336136399
- Kevin Delahanty, M.D.Wareham, MA 025711639272909
- Sirjana Dhungana Parajuli, MDWareham, MA 025711063606473
- Thomas Geagan, MDWareham, MA 025711699735647
- Robert McGowen, MDWareham, MA 025711285637405
- Daniel MillerWareham, MA 025711982920591
- Radford Reynolds, MDWareham, MA 025711477655231
- Rose Shorter, MDWareham, MA 025711861430852
Common questions
What is Zachary A. Zanfes, D.O.'s NPI number?
Zachary A. Zanfes, D.O.'s National Provider Identifier (NPI) is 1760829030, issued on May 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Zachary A. Zanfes, D.O. located?
The NPPES record lists a practice address at 100 Rosebrook Way, Wareham, MA, 02571. Phone: (508) 273-4950. Providers update this record themselves, so call before visiting.
How can I verify Zachary A. Zanfes, D.O.'s license?
NPPES lists Massachusetts license number 287356, 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 Zachary A. Zanfes, D.O. prescribe under Medicare Part D?
In 2024, Zachary A. Zanfes, D.O. had 3,079 Medicare Part D claims for 515 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Zachary A. Zanfes, D.O.'s MIPS final score?
The 2023 MIPS final score is 79.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.