STEPHEN ZERLANG
NPI 1053722405
Family Medicine in Greeley, CO
About Stephen Zerlang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN ZERLANG (NPI 1053722405) is an individual family medicine provider in Greeley, Colorado, licensed in Colorado (TL005133) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
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
Stephen Zerlang 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 Reassignments
2Medicare enrollment records show Stephen Zerlang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Visalia, CA 93292
- Reassigned Medicare billing, California enrollment
- 184 clinicians in this Medicare group
Visalia, CA 93291
- Reassigned Medicare billing, California enrollment
- 73 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 11
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Stephen Zerlang's NPI number?
The NPI number for Stephen Zerlang is 1053722405. It was assigned to this individual provider in the NPPES registry on May 19, 2014.
Where is Stephen Zerlang located?
Stephen Zerlang practices at 1600 23rd Ave, Greeley, CO 80634. The listed phone number is (970) 346-2800.
What is Stephen Zerlang's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Stephen Zerlang enrolled in Medicare?
Yes. Stephen Zerlang 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 organizations bill Medicare for Stephen Zerlang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Zerlang reassigns Medicare benefits to 2 organizations: Kaweah Delta Health Care District (Visalia, CA) and Valley Hospitalist Medical Group, Inc (Visalia, CA). Each 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 Stephen Zerlang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stephen Zerlang was last updated on July 21, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Stephen Zerlang · NPI 1053722405
Family Medicine physician in Greeley, Colorado. Individual provider, active in the CMS NPPES registry since May 19, 2014.
## Identity
- **NPI:** 1053722405 (Entity type: Individual)
- **Enumerated:** May 19, 2014
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** TL005133 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 23RD AVE, Greeley, CO 80634-6070
- **Phone:** (970) 346-2800 · **Fax:** (970) 346-2774
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Kaweah Delta Health Care District (NPI 1881984706, Visalia, CA); Valley Hospitalist Medical Group, Inc (NPI 1790925071, Visalia, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** July 21, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1053722405) · Data from the CMS NPPES public registry.