NPPES file of Aug 9, 2026

Ryan Patrick Hollien, DC

Chiropractor · Boston, MA

Ryan Patrick Hollien, DC is a chiropractor with a practice address in Boston, Massachusetts, and NPI 1821333212, issued on Dec 11, 2012. Check the license (Massachusetts 3649, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821333212
Name
Ryan Patrick Hollien
Credential
DC
Primary taxonomy
Chiropractor 111N00000X
License number
3649 MA
Self-reported in NPPES; status is on the state search
Practice location
212 Northern Ave, Boston, MA 02210
Phone
(617) 519-3607
Enumerated
Dec 11, 2012
Record last updated
Jan 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190320000579); accepts Medicare assignment
Medical or professional school
New York Chiropractic College, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ryan Patrick Hollien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 3649
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Chiropractor providers in Massachusetts

There are 1,577 chiropractor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other chiropractor records in Massachusetts

  1. Ibrahim Abdulmassih, D.C.Worcester, MA1740329317
  2. Susan Aberle, D.C.Falmouth, MA1548453475
  3. Michael Abgrab, D.C.Fall River, MA1184773814
  4. Marty Abrams, MA, DCSharon, MA1356343305
  5. Joan Accuosti, D.C.Pittsfield, MA1144292509
  6. Erin Acevedo, D.C.Beverly, MA1780741769
  7. Elisa Adams, D.C.Lexington, MA1194887794
  8. James Adams, D.C.Plymouth, MA1598978777
  9. Jeffrey Adams, D.C.Marshfield, MA1386764041
  10. Lauren Adelizi, DCWellesley, MA1255510384

Common questions

What is Ryan Patrick Hollien, DC's NPI number?

Ryan Patrick Hollien, DC's National Provider Identifier (NPI) is 1821333212, issued on Dec 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Patrick Hollien, DC located?

The NPPES record lists a practice address at 212 Northern Ave, Boston, MA, 02210. Phone: (617) 519-3607. Providers update this record themselves, so call before visiting.

How can I verify Ryan Patrick Hollien, DC's license?

NPPES lists Massachusetts license number 3649, 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. 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.