Oliver Loeffler, M.D.
NPI 1336434059 · Family Medicine Physician · Aurora, CO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oliver Loeffler, M.D. is a Family Medicine Physician provider in Aurora, CO (NPI 1336434059).
Provider details
- NPI number
- 1336434059
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0056374 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 34 | 34 |
| Cefuroxime Axetilbrand: Cefuroxime | 33 | 32 |
| Ondansetronbrand: Ondansetron Odt | 21 | 21 |
| Prednisone | 21 | 21 |
| Doxycycline Monohydrate | 12 | 12 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 12 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-10
- Last updated
- 2021-05-19
- Certified
- 2021-05-19
Frequently asked questions
- What is Oliver Loeffler's NPI number?
- Oliver Loeffler's National Provider Identifier (NPI) is 1336434059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oliver Loeffler's specialty?
- Oliver Loeffler is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Oliver Loeffler located?
- Oliver Loeffler's practice location on file with NPPES is 14701 E Exposition Ave, Aurora, CO 80012-2623.
- What is Oliver Loeffler's phone number?
- The practice phone number listed in the NPPES registry for Oliver Loeffler is (303) 338-4545.
- Does Oliver Loeffler accept Medicare?
- Oliver Loeffler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oliver Loeffler's NPI active?
- Yes — Oliver Loeffler's NPI (1336434059) is active in the NPPES registry as of the last update on 2021-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.