Christopher Ryan Fields, PT, DPT, OCS
Physical Therapist · Greenfield, MA
Christopher Ryan Fields, PT, DPT, OCS is a physical therapist with a practice address in Greenfield, Massachusetts, and NPI 1528601507, issued on Oct 23, 2019. Check the license (Massachusetts 21805, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Ryan Fields
- Credential
- PT, DPT, OCS
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 21805 MA
Self-reported in NPPES; status is on the state search - Practice location
- 329 Conway St, Greenfield, MA 01301
- Phone
- (413) 774-6301
- Enumerated
- Oct 23, 2019
- Record last updated
- Apr 11, 2024
- Fax
- (866) 644-0871
- Medicare enrollment
- Enrolled (PECOS I20191114000277); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 7,100 in Massachusetts → Look up another NPI →
Also registered at 329 Conway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Allen, M.D.Family Medicine Physician1285633198
- John Anderson, ED.D.Clinical Psychologist1871678136
- Lisa Appleton, NPNurse Practitioner1831219609
- Marie Bartlett, MSWClinical Social Worker1790815306
- Barbara Berthiaume, APRNFamily Nurse Practitioner1053736629
- Jessica Biggie, MDFamily Medicine Physician1689649584
Verify Christopher Ryan Fields in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 21805Check 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
- Valley Medical Group PCGreenfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Ryan Fields among 7,100 physical therapist records in Massachusetts
Christopher Ryan Fields, PT, DPT, OCS is one of 7,100 physical therapist records with a practice address in Massachusetts. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 68% of them.
- NPI issued2019 · 68% of these records are older, 28% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated2015 · median 2017 among the 2,371 with a school on file
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 physical therapist records list a practice address in Greenfield
They are 43 of the 1,251 NPPES records with a practice address in Greenfield, and 7,100 physical therapist records in Massachusetts.
All 7,100 in Massachusetts → Every provider in Greenfield → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Linda Aja, PTGreenfield, MA 013011316009749
- Warren Aja, PTGreenfield, MA 013011336291228
- Reid Anderson, P.T.Greenfield, MA 013011275641243
- Danielle Campbell, MSPTGreenfield, MA 013011427091743
- Michael Candito, PTGreenfield, MA 013011184686321
- Elizabeth Dolby, P.T.Greenfield, MA 013011285726810
- Karen Johnston, M.S.P.T.Greenfield, MA 013011033227889
- Kristin Kelleher-Mochak, P.T.Greenfield, MA 013011619911625
Common questions
What is Christopher Ryan Fields, PT, DPT, OCS's NPI number?
Christopher Ryan Fields, PT, DPT, OCS's National Provider Identifier (NPI) is 1528601507, issued on Oct 23, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Ryan Fields, PT, DPT, OCS located?
The NPPES record lists a practice address at 329 Conway St, Greenfield, MA, 01301. Phone: (413) 774-6301. Providers update this record themselves, so call before visiting.
How can I verify Christopher Ryan Fields, PT, DPT, OCS's license?
NPPES lists Massachusetts license number 21805, as entered by the provider. 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. 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.