John Oldemeyer, M.D.
NPI 1700882123 · Interventional Cardiology Physician · Fort Collins, CO
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Oldemeyer, M.D. is a Interventional Cardiology Physician provider in Fort Collins, CO (NPI 1700882123).
Provider details
- NPI number
- 1700882123
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42588 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 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
1,664 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 630 | $127 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 126 | $11 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $90 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 95 | $177 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 68 | $721 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 665 | 210 |
| Rosuvastatin Calcium | 466 | 148 |
| Metoprolol Succinate | 465 | 160 |
| Ezetimibe | 437 | 132 |
| Apixabanbrand: Eliquis | 312 | 90 |
| Furosemide | 296 | 104 |
| Carvedilol | 268 | 79 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,635 across 28 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
- 2005-06-21
- Last updated
- 2016-03-22
Frequently asked questions
- What is John Oldemeyer's NPI number?
- John Oldemeyer's National Provider Identifier (NPI) is 1700882123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Oldemeyer's specialty?
- John Oldemeyer is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Oldemeyer located?
- John Oldemeyer's practice location on file with NPPES is 2121 E Harmony Rd, Fort Collins, CO 80528-3401.
- What is John Oldemeyer's phone number?
- The practice phone number listed in the NPPES registry for John Oldemeyer is (970) 221-1000.
- Does John Oldemeyer accept Medicare?
- John Oldemeyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Oldemeyer's NPI active?
- Yes — John Oldemeyer's NPI (1700882123) is active in the NPPES registry as of the last update on 2016-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.