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Edit this profileAt a glance
- 2121 E Harmony Rd, Unit 100, Fort Collins, CO 80528
About Dr. Oldemeyer
Based in Fort Collins, CO, John B. Oldemeyer, M.D. is listed in the NPI registry under interventional cardiology. John graduated from Creighton University School of Medicine in 1996. John is also listed as specializing in cardiovascular disease. Medicare claims data shows John provided 1,641 services to 1,393 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, anticoagulant management of patient taking warfarin, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1700882123 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (970) 221-1000
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2121 E HARMONY RD UNIT 100
Fort Collins, CO 80528
Conditions Commonly Evaluated or Treated
Within Interventional Cardiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Artery blockages
- Aortic aneurysm
- Carotid Artery Blockage
- Completely Blocked Heart Artery
- Microvascular angina
- Re-Blocked Heart Stent
- Severely Calcified Heart Arteries
- Torn Heart Artery
Blood clots
Blood pressure
Chest symptoms
Circulation & veins
Coronary disease
Heart failure
Heart muscle
Heart muscle conditions
Heart rhythm
Heart rhythm & blood flow
Heart valves
Structural & congenital
Structural heart
Valve disease
Vascular disease
- Leg Cramps When Walking
- Narrow kidney artery
- Stomach Pain After Eating From Arteries
- Subclavian Steal Syndrome
Vein conditions
Procedures & services
Artery procedures
- Carotid Artery Stent
- Atherectomy
- Drug-Coated Balloon Treatment
- Minimally Invasive Aneurysm Repair
- Opening Chronic 100% Blocked Heart Arteries
- Shockwave Plaque Busting In Heart Arteries
Clot procedures
- Catheter Clot Dissolving Treatment
- Catheter Blood Clot Removal From Legs
- IVC Filter Placement
- IVC Filter Removal
Most searched procedures
- AFib ablation
- Angioplasty and stenting
- Cardiac catheterization
- Pacemaker implantation
- Watchman procedure
Blood pressure procedures
Circulation & limbs
Circulatory support
Coronary stenting
Diagnostic catheterization
Diagnostic tests
Diagnostics & monitoring
- Fractional flow reserve measurement
- Implantable Loop Recorder (Cardiac Monitor Implant)
- Intravascular ultrasound
Emergency heart procedures
Heart devices
Heart muscle
Heart support
Imaging & diagnostics
Stenting
Structural heart repair
Structural repair
Valve procedures
- Balloon Heart Valve Opening
- Leaky Artificial Heart Valve Repair
- Transcatheter aortic valve replacement
- Transcatheter mitral valve repair
- Transcatheter Pulmonary Valve Replacement
- TriClip Valve Repair
Valve replacement
Vein procedures
Procedures Most Often Billed to Medicare
1,641 services · 1,393 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
68 | More often than most peers in Interventional Cardiology |
| Placement and subsequent removal of device to protect brain from embolism through catheter using imaging guidance | Procedure | 33370 |
34 | More often than most peers in Interventional Cardiology |
| Anticoagulant management of patient taking warfarin | Treatment | 93793 |
126 | As often as other peers in Interventional Cardiology |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
56 | As often as other peers in Interventional Cardiology |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
43 | Less often than most peers in Interventional Cardiology |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
35 | As often as other peers in Interventional Cardiology |
| Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Treatment | 92928 |
34 | More often than most peers in Interventional Cardiology |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
33 | As often as other peers in Interventional Cardiology |
| Ultrasound of heart, follow-up | Treatment | 93308 |
33 | As often as other peers in Interventional Cardiology |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
33 | As often as other peers in Interventional Cardiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other interventional cardiologists at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 25 related providers in 4 groups
Other interventional cardiologists in Fort Collins 2
Same specialty, same city.
Trained at Creighton University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1996 at Creighton University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Replacement of aortic valve through the skin and femoral artery 7
Providers in CO who bill this service to Medicare most often.
Common questions
What kind of doctor is John B. Oldemeyer?
John B. Oldemeyer is an interventional cardiologist in Fort Collins, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Interventional Cardiology”.
NPI registry
What is John B. Oldemeyer's address?
John B. Oldemeyer is listed at 2121 E Harmony Rd Unit 100, Fort Collins, CO 80528. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John B. Oldemeyer?
The number on file is (970) 221-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John B. Oldemeyer?
John B. Oldemeyer's National Provider Identifier is 1700882123. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John B. Oldemeyer train?
John B. Oldemeyer attended Creighton University School of Medicine, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John B. Oldemeyer have?
John B. Oldemeyer has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What procedures does John B. Oldemeyer perform?
According to Medicare billing data, John B. Oldemeyer performs procedures including replacement of aortic valve through the skin and femoral artery and placement and subsequent removal of device to protect brain from embolism through catheter using imaging guidance; provides treatments such as anticoagulant management of patient taking warfarin and use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John B. Oldemeyer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John B. Oldemeyer. If this is you, claiming it is free.
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