HERBERT DANIEL FAHRENHOLTZ MD
NPI 1811986169
Family Medicine in Greeley, CO
About Herbert Daniel Fahrenholtz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HERBERT DANIEL FAHRENHOLTZ MD (NPI 1811986169) is an individual family medicine provider in Greeley, Colorado, licensed in Colorado (DR32319) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1972).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Herbert Daniel Fahrenholtz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Herbert Fahrenholtz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greeley, CO 80634
- Reassigned Medicare billing, Colorado enrollment
- 45 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80634 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREELEY, CO 80634
GREELEY, CO 80634
GREELEY, CO 80634
GREELEY, CO 80634
GREELEY, CO 80634
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Herbert Fahrenholtz's NPI number?
The NPI number for Herbert Fahrenholtz is 1811986169. It was assigned to this individual provider in the NPPES registry on October 19, 2005.
Where is Herbert Fahrenholtz located?
Herbert Fahrenholtz practices at 1600 23rd Ave, Greeley, CO 80634. The listed phone number is (970) 356-2424.
What is Herbert Fahrenholtz's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Herbert Fahrenholtz enrolled in Medicare?
Yes. Herbert Fahrenholtz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Herbert Fahrenholtz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Herbert Fahrenholtz reassigns Medicare benefits to North Colorado Family Medicine (Greeley, CO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Herbert Fahrenholtz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Herbert Fahrenholtz accept?
Health plans from UnitedHealthcare list Herbert Fahrenholtz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Herbert Fahrenholtz was last updated on July 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Herbert Daniel Fahrenholtz, MD · NPI 1811986169
Family Medicine physician in Greeley, Colorado. Individual provider, active in the CMS NPPES registry since October 19, 2005.
## Identity
- **NPI:** 1811986169 (Entity type: Individual)
- **Enumerated:** October 19, 2005
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** DR32319 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 23RD AVE, Greeley, CO 80634-6070
- **Phone:** (970) 356-2424 · **Fax:** (970) 346-2828
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** North Colorado Family Medicine (NPI 1083642680, Greeley, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 1972
## Record status
- **NPPES last updated:** July 29, 2008
- **Other identifiers:** Medicaid 01323195 (CO); Medicare UPIN B91043; Medicare PIN C173488 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1811986169) · Data from the CMS NPPES public registry.