Joseph Martin Litwak, MD
Hospitalist Physician · Oak Bluffs, MA
Joseph Martin Litwak, MD is a hospitalist physician with a practice address in Oak Bluffs, Massachusetts, and NPI 1396792958, issued on May 28, 2006. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joseph Martin Litwak
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 14515 NH
9700642 NC
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hospital RD, Oak Bluffs, MA 02557
- Phone
- (603) 502-4144
- Enumerated
- May 28, 2006
- Record last updated
- Nov 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (413) 200-3251
- Medicaid IDs
- 30208808 NH
891118N NC - Medicare enrollment
- Enrolled (PECOS I20090915000479); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 525 in Massachusetts → Look up another NPI →
Also registered at 1 Hospital RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Anne-Marie Bell, FNP-CFamily Nurse Practitioner1508249848
- Linsay BumilaNurse Practitioner1659906444
- Paula Caron, RPHPharmacist1407688328
Verify Joseph Martin Litwak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Monadnock Community HospitalPeterborough, NH · Critical Access Hospitals2 of 5 stars
- Upper Connecticut Valley Hospital AssociationColebrook, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Joseph Martin Litwak among 525 hospitalist physician records in Massachusetts
Joseph Martin Litwak, MD is one of 525 hospitalist physician records with a practice address in Massachusetts. 92% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 80% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated1992 · median 2012 among the 449 with a school on file
- Record last updated2020 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Massachusetts
There are 525 hospitalist physician records in Massachusetts.
All 525 in Massachusetts → Every provider in Oak Bluffs → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Paymon Kayhani, M.D.Wareham, MA 025711215995543
- Charles Kert, M.D.Wareham, MA 025711023024031
- Peng Zhang, MDWareham, MA 025711811105737
- Jonathan Costa, DOFalmouth, MA 025401821065244
- Arshad Mian, MDFalmouth, MA 025401710955125
- Michelle Swekla, MDFalmouth, MA 025401144298084
- Timothy Arruda, MDHyannis, MA 026011538134333
- Ean Callanan, MDHyannis, MA 026011366417156
Common questions
What is Joseph Martin Litwak, MD's NPI number?
Joseph Martin Litwak, MD's National Provider Identifier (NPI) is 1396792958, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Martin Litwak, MD located?
The NPPES record lists a practice address at 1 Hospital RD, Oak Bluffs, MA, 02557. Phone: (603) 502-4144. Providers update this record themselves, so call before visiting.
How can I verify Joseph Martin Litwak, MD's license?
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.