Barbara K. Prazak, M.D.
Internal Medicine Physician · Wellfleet, MA
Barbara K. Prazak, M.D. is an internal medicine physician with a practice address in Wellfleet, Massachusetts, and NPI 1720190499, issued on Aug 31, 2006. Check the license (Massachusetts 71755, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Barbara K. Prazak
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 71755 MA
Self-reported in NPPES; status is on the state search - Practice location
- 3130 State Hwy Rte 6, Wellfleet, MA 02667
- Phone
- (508) 349-3131
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 16, 2026
- Fax
- (508) 487-6298
- Medicaid ID
- 110065580A MA
- Medicare enrollment
- Enrolled (PECOS I20050328000984); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 1980
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 3130 State Hwy Rte 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gretchen Eckel, PA-CMedical Physician Assistant1841532751
- Feneta Forbes-Crowe, NPNurse Practitioner1619080371
Verify Barbara K. Prazak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 71755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
483 Medicare Part D claims for 309 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Azithromycin68 claims
- Prednisone36 claims
- Amoxicillin-Clavulanate Potass30 claims
- Nitrofurantoin Mono-Macro30 claims
- Betamethasone Dipropionate21 claims
- Paxlovid21 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
- Outer Cape Health Services IncWellfleet, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barbara K. Prazak among 6,825 internal medicine physician records in Massachusetts
Barbara K. Prazak, M.D. 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
- Graduated1980 · median 2004 among the 4,103 with a school on file
- Record last updated2026 · 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).
6 internal medicine physician records list a practice address in Wellfleet
They are 6 of the 55 NPPES records with a practice address in Wellfleet, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Wellfleet → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Matthew Burdette, DOWellfleet, MA 026671407240955
- Lawrence Millhofer, M.D.Wellfleet, MA 026671033159561
- Lawrence Newman, MDWellfleet, MA 026671548229727
- Barbara Penn, MDWellfleet, MA 026671467562579
- H Spencer, MDWellfleet, MA 026671013956648
- Jorge Alfonso, MDSouth Yarmouth, MA 026641013983402
- Julia Carson, D.O.S Yarmouth, MA 026641548279953
- Ann Gryboski, MDSouth Yarmouth, MA 026641053389924
Common questions
What is Barbara K. Prazak, M.D.'s NPI number?
Barbara K. Prazak, M.D.'s National Provider Identifier (NPI) is 1720190499, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Barbara K. Prazak, M.D. located?
The NPPES record lists a practice address at 3130 State Hwy Rte 6, Wellfleet, MA, 02667. Phone: (508) 349-3131. Providers update this record themselves, so call before visiting.
How can I verify Barbara K. Prazak, M.D.'s license?
NPPES lists Massachusetts license number 71755, 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 Barbara K. Prazak, M.D. prescribe under Medicare Part D?
In 2024, Barbara K. Prazak, M.D. had 483 Medicare Part D claims for 309 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.