Zachary Pfiffner, PA
Physician Assistant · Loveland, CO
Zachary Pfiffner, PA is a physician assistant with a practice address in Loveland, Colorado, and NPI 1538360946, issued on May 31, 2007. Check the license (Colorado PA.0003513, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachary Pfiffner
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA.0003513 CO
085002972 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2500 Rocky Mountain Ave, Loveland, CO 80538
- Phone
- (970) 203-7250
- Enumerated
- May 31, 2007
- Record last updated
- Mar 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (970) 203-7256
- Medicaid ID
- 1538360946 CO
- Medicare enrollment
- Enrolled (PECOS I20120831000532); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2500 Rocky Mountain Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Bare, D.O.Obstetrics & Gynecology Physician1528357209
Verify Zachary Pfiffner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license PA.0003513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average physician assistant in 2024
30 Medicare Part D claims for 20 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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 MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCLoveland, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
95 physician assistant records list a practice address in Loveland
They are 95 of the 2,113 NPPES records with a practice address in Loveland, and 3,767 physician assistant records in Colorado.
All 95 in Loveland → All 3,767 in Colorado → Every provider in Loveland →
Other physician assistant records in Colorado
- Hannah Abbe, PADenver, CO1083360184
- Brianna Abbott, PA-CColorado Springs, CO1013366905
- Elise AbbottFort Collins, CO1194516542
- Jennifer Abbott, PA-CColorado Springs, CO1851821334
- Timothy Abbott, PA-CDenver, CO1023152212
- Alexander AbbruzzeseFort Carson, CO1538994132
- Mary Abraham, PA-CColorado Springs, CO1225696800
- Mariella Accame, PALakewood, CO1629007141
- Valerie Ackman, PA-CEnglewood, CO1982824504
- Megan Acosta O'GaraPueblo, CO1083390736
Common questions
What is Zachary Pfiffner, PA's NPI number?
Zachary Pfiffner, PA's National Provider Identifier (NPI) is 1538360946, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Pfiffner, PA located?
The NPPES record lists a practice address at 2500 Rocky Mountain Ave, Loveland, CO, 80538. Phone: (970) 203-7250. Providers update this record themselves, so call before visiting.
How can I verify Zachary Pfiffner, PA's license?
NPPES lists Colorado license number PA.0003513, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does Zachary Pfiffner, PA prescribe under Medicare Part D?
In 2024, Zachary Pfiffner, PA had 30 Medicare Part D claims for 20 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Zachary Pfiffner, PA's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.