Crystal P. Cobb, DO
Endocrinology, Diabetes & Metabolism Physician · Worcester, MA
Crystal P. Cobb, DO is an endocrinology, diabetes & metabolism physician with a practice address in Worcester, Massachusetts, and NPI 1417446774, issued on May 2, 2018. Check the license (Massachusetts 291851, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Crystal P. Cobb
- Credential
- DO
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 291851 MA
99460 GA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-3206
- Enumerated
- May 2, 2018
- Record last updated
- Sep 3, 2025
- Fax
- (774) 442-4668
- Medicare enrollment
- Enrolled (PECOS I20241030003470); accepts Medicare assignment
- Medical or professional school
- Campbell Univ School Of Osteopathic Medicine, 2018
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 522 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary-Alice Abbott, MDClinical Genetics (M.D.) Physician1982799417
Verify Crystal P. Cobb in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 291851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
53 Medicare Part D claims for 41 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- The Emory Clinic IncAtlanta, GA
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Crystal P. Cobb among 522 endocrinology, diabetes & metabolism physician records in Massachusetts
Crystal P. Cobb, DO is one of 522 endocrinology, diabetes & metabolism 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 2018, is newer than 90% of them.
- NPI issued2018 · 90% of these records are older, 8% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2018 · median 2002 among the 378 with a school on file
- Record last updated2025 · 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 207RE0101X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Massachusetts
There are 522 endocrinology, diabetes & metabolism physician records in Massachusetts.
All 522 in Massachusetts → Every provider in Worcester → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Neil Aronin, M.D.Worcester, MA 016551679556252
- Seth Arum, M.D.Worcester, MA 016551679578793
- Daniel Baran, M.D.Worcester, MA 016551841260221
- Raffaella Colzani, M.D.Worcester, MA 016551356324297
- Taniya De Silva, M.D.Worcester, MA 016551740212273
- Leslie Domalik, MDWorcester, MA 016551841307261
- Richard Haas, M.D.Worcester, MA 016551023017373
- Samir Malkani, M.D.Worcester, MA 016551174506018
Common questions
What is Crystal P. Cobb, DO's NPI number?
Crystal P. Cobb, DO's National Provider Identifier (NPI) is 1417446774, issued on May 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Crystal P. Cobb, DO located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-3206. Providers update this record themselves, so call before visiting.
How can I verify Crystal P. Cobb, DO's license?
NPPES lists Massachusetts license number 291851, 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.
How much does Crystal P. Cobb, DO prescribe under Medicare Part D?
In 2024, Crystal P. Cobb, DO had 53 Medicare Part D claims for 41 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions 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.