Walter J. Chwals, MD
Pediatric Surgery Physician · Boston, MA
Walter J. Chwals, MD is a pediatric surgery physician with a practice address in Boston, Massachusetts, and NPI 1497771141, issued on Jul 14, 2006. Check the license (Massachusetts 54706, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Walter J. Chwals
- Credential
- MD
- Primary taxonomy
- Pediatric Surgery Physician 2086S0120X
- License numbers
- 54706 MA
35-080813 OH
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- Jul 14, 2006
- Record last updated
- Jan 29, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 2319539 OH
- Medicare enrollment
- Enrolled (PECOS I20091117000217); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric surgery physician records → All 51 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
- Omer Abbak, PHARMDPharmacist1114500337
- Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
- Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
- Ahmad AboalfarajSurgery Physician1538517651
- Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250
Verify Walter J. Chwals in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 54706Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Pratt Pediatric Associates IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter J. Chwals among 51 pediatric surgery physician records in Massachusetts
Walter J. Chwals, MD is one of 51 pediatric surgery physician records with a practice address in Massachusetts. 53% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated1980 · median 2002 among the 25 with a school on file
- Record last updated2014 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0120X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Surgery Physician providers in Massachusetts
There are 51 pediatric surgery physician records in Massachusetts.
All 51 in Massachusetts → Every provider in Boston → Pediatric Surgery Physician nationwide →
The 8 pediatric surgery physician records with the nearest ZIP codes
- Brian Gilchrist, MDBoston, MA 021111326098419
- Danielle Cameron, MDBoston, MA 021141598062564
- Patricia Donahoe, MDBoston, MA 021141437122512
- Daniel Doody, M.D.Boston, MA 021141023098621
- David Lawlor, MDBoston, MA 021141295711323
- Daniel Ryan, MDBoston, MA 021141851382733
- Jay Schnitzer, M.D., PH.D.Boston, MA 021141396734570
- Matthew Shaughnessy, MDBoston, MA 021141003264854
Common questions
What is Walter J. Chwals, MD's NPI number?
Walter J. Chwals, MD's National Provider Identifier (NPI) is 1497771141, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Walter J. Chwals, MD located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Walter J. Chwals, MD's license?
NPPES lists Massachusetts license number 54706, 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.
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.