Eric Westerman, D.O.
NPI 1538199849 · Rheumatology Physician · Englewood, CO
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Westerman, D.O. is a Rheumatology Physician provider in Englewood, CO (NPI 1538199849).
Provider details
- NPI number
- 1538199849
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 28989 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,298 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 752 | $64 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 534 | $134 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 436 | $182 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 397 | $28 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 350 | $75 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 665 | 218 |
| Hydroxychloroquine Sulfate | 294 | 86 |
| Tramadol Hcl | 182 | 52 |
| Methotrexate Sodiumbrand: Methotrexate | 174 | 49 |
| Leflunomide | 156 | 41 |
| Azithromycin | 151 | 82 |
| Ibandronate Sodium | 128 | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$453 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2013-09-27
Frequently asked questions
- What is Eric Westerman's NPI number?
- Eric Westerman's National Provider Identifier (NPI) is 1538199849, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Westerman's specialty?
- Eric Westerman is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Westerman located?
- Eric Westerman's practice location on file with NPPES is 701 E Hampden Ave, Englewood, CO 80113-2736.
- What is Eric Westerman's phone number?
- The practice phone number listed in the NPPES registry for Eric Westerman is (303) 788-1312.
- Does Eric Westerman accept Medicare?
- Eric Westerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Westerman's NPI active?
- Yes — Eric Westerman's NPI (1538199849) is active in the NPPES registry as of the last update on 2013-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.