Joseph W. Walek, MD
Sleep Medicine (Internal Medicine) Physician · Gardner, MA
Joseph W. Walek, MD is a sleep medicine (internal medicine) physician with a practice address in Gardner, Massachusetts, and NPI 1902891435, issued on Sep 12, 2005. Check the license (Massachusetts 71291, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joseph W. Walek
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- 71291 MA
Self-reported in NPPES; status is on the state search - Practice location
- 242 Green St, Gardner, MA 01440
- Phone
- (978) 630-5020
- Enumerated
- Sep 12, 2005
- Record last updated
- Feb 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (978) 630-5029
- Medicaid ID
- 110049110A MA
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 34 in Massachusetts → Look up another NPI →
Also registered at 242 Green St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nithya Agrawal, MD., MS., MPHInternal Medicine Physician1982811212
- Jane Allard, RNRegistered Nurse1003470493
- Amber Bertrand, PHARMDPharmacist1013835537
- Catherine Biliouris, MS, RD, LDN, CDERegistered Dietitian1235260142
- Taylor Boudreau, CNPNurse Practitioner1437502630
- Susanna Casey, NPNurse Practitioner1225106040
Verify Joseph W. Walek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 71291Check 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 sleep medicine (internal medicine) physician in 2024
24 Medicare Part D claims for 14 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 67% of 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 MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Joseph W. Walek among 34 sleep medicine (internal medicine) physician records in Massachusetts
Joseph W. Walek, MD is one of 34 sleep medicine (internal medicine) physician records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2015 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Massachusetts
There are 34 sleep medicine (internal medicine) physician records in Massachusetts.
All 34 in Massachusetts → Every provider in Gardner → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Wassim Assaf, MDAuburn, MA 015011548400278
- Chloe Deng, D.O.Auburn, MA 015011033735428
- Neil Bach, MDGreenfield, MA 013011407819626
- Christine Fitzgibbons, M.D.Westborough, MA 015811194771220
- Stephen Derose, M.D., M.S.H.S.Springfield, MA 011071710272810
- Yifeng Lu, DOSpringfield, MA 011071417690827
- Eva Mok, M.D.Springfield, MA 011071124318233
- Neil Shore, MDSalem, MA 019701346243698
Common questions
What is Joseph W. Walek, MD's NPI number?
Joseph W. Walek, MD's National Provider Identifier (NPI) is 1902891435, issued on Sep 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Joseph W. Walek, MD located?
The NPPES record lists a practice address at 242 Green St, Gardner, MA, 01440. Phone: (978) 630-5020. Providers update this record themselves, so call before visiting.
How can I verify Joseph W. Walek, MD's license?
NPPES lists Massachusetts license number 71291, 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 Joseph W. Walek, MD prescribe under Medicare Part D?
In 2024, Joseph W. Walek, MD had 24 Medicare Part D claims for 14 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.
What is Joseph W. Walek, MD's MIPS final score?
The 2023 MIPS final score is 97 of 100. 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.