Michael Gray Shell, D.O.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · Longmont, CO
Michael Gray Shell, D.O. is a pain medicine (physical medicine & rehabilitation) physician with a practice address in Longmont, Colorado, and NPI 1518925718, issued on May 4, 2006. Check the license (Colorado 35565, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael Gray Shell
- Credential
- D.O.
- Primary taxonomy
- Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
- License number
- 35565 CO
Self-reported in NPPES; status is on the state search - Practice location
- 1551 Professional LN Unit 180, Longmont, CO 80501
- Phone
- (720) 476-3421
- Enumerated
- May 4, 2006
- Record last updated
- Jul 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (720) 502-5271
- Medicare enrollment
- Enrolled (PECOS I20160707000184); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1990
- Entity
- Type 1 · individual
8 nearest pain medicine (physical medicine & rehabilitation) physician records → All 37 in Colorado → Look up another NPI →
Also registered at 1551 Professional LN Unit 180
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marcus Chavez, OTD, CLTOccupational Therapist1609610609
- Forrest Ray, LPCCMental Health Counselor1578198271
- John Schultz, D.C.Chiropractor1528157716
- Jessica York, NPFamily Nurse Practitioner1023849973
Verify Michael Gray Shell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 35565Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024
12 Medicare Part D claims, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Lutheran Hospital Association OF The San Luis ValleyAlamosa, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Gray Shell among 37 pain medicine (physical medicine & rehabilitation) physician records in Colorado
Michael Gray Shell, D.O. is one of 37 pain medicine (physical medicine & rehabilitation) physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 0% of them.
- NPI issued2006 · 0% of these records are older, 62% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1990 · median 2009 among the 29 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in Colorado
There are 37 pain medicine (physical medicine & rehabilitation) physician records in Colorado.
All 37 in Colorado → Every provider in Longmont → Pain Medicine (Physical Medicine & Rehabilitation) Physician nationwide →
The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes
- Douglas Hemler, M.D.Golden, CO 804011144246786
- Karen Knight, MDGolden, CO 804011598847659
- Kyle Morgan, D.O.Golden, CO 804011952556417
- Elise Itano, MDGreeley, CO 806341225449754
- Sonja Stilp, M.D.Boulder, CO 803041659304343
- Rock Navarkal, M.D.Denver, CO 802461073703484
- Brian Fuller, M.D.Denver, CO 802381538235502
- Matthew Gray, M.D.Northglenn, CO 802331396001038
Common questions
What is Michael Gray Shell, D.O.'s NPI number?
Michael Gray Shell, D.O.'s National Provider Identifier (NPI) is 1518925718, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Gray Shell, D.O. located?
The NPPES record lists a practice address at 1551 Professional LN Unit 180, Longmont, CO, 80501. Phone: (720) 476-3421. Providers update this record themselves, so call before visiting.
How can I verify Michael Gray Shell, D.O.'s license?
NPPES lists Colorado license number 35565, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Gray Shell, D.O. prescribe under Medicare Part D?
In 2024, Michael Gray Shell, D.O. had 12 Medicare Part D claims; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. Part D covers Medicare prescriptions only.
What is Michael Gray Shell, D.O.'s MIPS final score?
The 2023 MIPS final score is 84 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.