Ryan Sliwak
Psychologist · Boston, MA
Ryan Sliwak is a psychologist with a practice address in Boston, Massachusetts, and NPI 1326887423, issued on May 20, 2024. Check the license with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ryan Sliwak
- Primary taxonomy
- Psychologist 103T00000X
- Practice location
- 1 Constitution Plz, Boston, MA 02129
- Phone
- (617) 724-5202
- Enumerated
- May 20, 2024
- Record last updated
- Sep 16, 2024
- Entity
- Type 1 · individual
8 nearest psychologist records → All 2,367 in Massachusetts → Look up another NPI →
Verify Ryan Sliwak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ryan Sliwak among 2,367 psychologist records in Massachusetts
Ryan Sliwak is one of 2,367 psychologist records with a practice address in Massachusetts. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2024, is newer than 93% of them.
- NPI issued2024 · 93% of these records are older, 3% newer
- In a Medicare fileNo · 11% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2024 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
457 psychologist records list a practice address in Boston
They are 457 of the 41,865 NPPES records with a practice address in Boston, and 2,367 psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,367 in Massachusetts → Every provider in Boston → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Florence Farrell, PHDCharlestown, MA 021291699743971
- Jessica Geragosian, PSYDCharlestown, MA 021291841699576
- Gabrielle Hoover, PHDCharlestown, MA 021291285287573
- Edelmira Kruger, PHDCharlestown, MA 021291063439008
- Brian Macone, PSYDCharlestown, MA 021291508428962
- Donald McLeod, PHDCharlestown, MA 021291417933672
- Lisa Solomon, PHDCharlestown, MA 021291215928858
- William Tinney, PSYDCharlestown, MA 021291295112027
Common questions
What is Ryan Sliwak's NPI number?
Ryan Sliwak's National Provider Identifier (NPI) is 1326887423, issued on May 20, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Sliwak located?
The NPPES record lists a practice address at 1 Constitution Plz, Boston, MA, 02129. Phone: (617) 724-5202. Providers update this record themselves, so call before visiting.
How can I verify Ryan Sliwak's license?
Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. 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.