Crystal M. North, M.D.
Pulmonary Disease Physician · Boston, MA
Crystal M. North, M.D. is a pulmonary disease physician with a practice address in Boston, Massachusetts, and NPI 1710146691, issued on Jun 5, 2008. Check the license (Massachusetts 251031, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Crystal M. North
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 251031 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit Street, Boston, MA 02114
- Phone
- (617) 726-1721
- Enumerated
- Jun 5, 2008
- Record last updated
- Sep 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161004000906); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 569 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Abraham, M.D.Specialist1487743316
- Nadia Ahmad, M.D.Internal Medicine Physician1912198037
- Fayaz Ahmed, MDStudent in an Organized Health Care Education/Training Program1528245024
- John Albin, MD, PHDInfectious Disease Physician1528472644
- Mary Amatangelo, NPAcute Care Nurse Practitioner1114191442
- Tian You An, M.D.Anesthesiology Physician1801145792
Verify Crystal M. North in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 251031Check 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Crystal M. North among 569 pulmonary disease physician records in Massachusetts
Crystal M. North, M.D. is one of 569 pulmonary disease 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 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 35% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2008 · median 2003 among the 407 with a school on file
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Massachusetts
There are 569 pulmonary disease physician records in Massachusetts.
All 569 in Massachusetts → Every provider in Boston → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Robert Brown, M.D.Boston, MA 021141013954734
- David Christiani, MDBoston, MA 021141295726735
- Leo Ginns, MDBoston, MA 021141144211772
- Robert Harris, MDBoston, MA 021141336130681
- Gary Hunninghake, MDBoston, MA 021141700877982
- Richard Kradin, MDBoston, MA 021141053301325
- James Mojica, M.D.Boston, MA 021141235188822
- Deborah Quinn, MDBoston, MA 021141134110067
Common questions
What is Crystal M. North, M.D.'s NPI number?
Crystal M. North, M.D.'s National Provider Identifier (NPI) is 1710146691, issued on Jun 5, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Crystal M. North, M.D. located?
The NPPES record lists a practice address at 55 Fruit Street, Boston, MA, 02114. Phone: (617) 726-1721. Providers update this record themselves, so call before visiting.
How can I verify Crystal M. North, M.D.'s license?
NPPES lists Massachusetts license number 251031, 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.