Stephen Zerlang
NPI 1053722405 · Family Medicine Physician · Greeley, CO
Enrolled with Medicare as Practitioner - Osteopathic Manipulative Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Zerlang is a Family Medicine Physician provider in Greeley, CO (NPI 1053722405).
Provider details
- NPI number
- 1053722405
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- TL005133 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
404 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 293 | $77 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 88 | $80 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 23 | $169 |
Typical Medicare-allowed amounts for these services range $77–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 110 | 54 |
| Lisinopril | 73 | 34 |
| Levothyroxine Sodium | 65 | 19 |
| Amlodipine Besylate | 62 | 21 |
| Metformin Hcl | 54 | 24 |
| Gabapentin | 53 | 22 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-19
- Last updated
- 2014-07-21
Frequently asked questions
- What is Stephen Zerlang's NPI number?
- Stephen Zerlang's National Provider Identifier (NPI) is 1053722405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Zerlang's specialty?
- Stephen Zerlang is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Zerlang located?
- Stephen Zerlang's practice location on file with NPPES is 1600 23rd Ave, Greeley, CO 80634-6070.
- What is Stephen Zerlang's phone number?
- The practice phone number listed in the NPPES registry for Stephen Zerlang is (970) 346-2800.
- Does Stephen Zerlang accept Medicare?
- Stephen Zerlang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Zerlang's NPI active?
- Yes — Stephen Zerlang's NPI (1053722405) is active in the NPPES registry as of the last update on 2014-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.