Jeffrey Evan Isaac, PA-C
Physician Assistant · Crested Butte, CO
Jeffrey Evan Isaac, PA-C is a physician assistant with a practice address in Crested Butte, Colorado, and NPI 1578566857, issued on May 31, 2005. Check the license (Colorado 969, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Evan Isaac
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 969 CO
Self-reported in NPPES; status is on the state search - Practice location
- 214 Sixth Street, Crested Butte, CO 81224
- Phone
- (970) 349-0321
- Enumerated
- May 31, 2005
- Record last updated
- Feb 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (970) 349-2985
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,767 in Colorado → Look up another NPI →
Verify Jeffrey Evan Isaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license 969Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 38.3 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).
Jeffrey Evan Isaac among 3,767 physician assistant records in Colorado
Jeffrey Evan Isaac, PA-C is one of 3,767 physician assistant records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2010 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 physician assistant record lists a practice address in Crested Butte
They are 1 of the 69 NPPES records with a practice address in Crested Butte, and 3,767 physician assistant records in Colorado.
All 3,767 in Colorado → Every provider in Crested Butte → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Danny Browning, PA-CGunnison, CO 812301861426165
- Samuel ElzayGunnison, CO 812301205372547
- Kara Gehan, PAGunnison, CO 812301831355130
- Amy Girand, PAGunnison, CO 812301770596272
- Dusty Hamilton, PAGunnison, CO 812301184678187
- Gregory Holley, PAGunnison, CO 812301154407823
- Amy Sandusky, PAGunnison, CO 812301164508834
- Matthew Wark, PACGunnison, CO 812301720228935
Common questions
What is Jeffrey Evan Isaac, PA-C's NPI number?
Jeffrey Evan Isaac, PA-C's National Provider Identifier (NPI) is 1578566857, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Evan Isaac, PA-C located?
The NPPES record lists a practice address at 214 Sixth Street, Crested Butte, CO, 81224. Phone: (970) 349-0321. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Evan Isaac, PA-C's license?
NPPES lists Colorado license number 969, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
What is Jeffrey Evan Isaac, PA-C's MIPS final score?
The 2023 MIPS final score is 38.3 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.