James Mcgowan, MD
NPI 1033175591 · Geriatric Medicine (Internal Medicine) Physician · Denver, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Mcgowan, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Denver, CO (NPI 1033175591).
Provider details
- NPI number
- 1033175591
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 22341 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
135 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 | 69 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $168 |
Typical Medicare-allowed amounts for these services range $91–$168 (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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 119 | 37 |
| Levothyroxine Sodium | 91 | 22 |
| Omeprazole | 59 | 12 |
| Losartan Potassium | 46 | 17 |
| Rosuvastatin Calcium | 45 | 16 |
| Lisinopril | 45 | 16 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$329 across 16 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
Additional practice locations (1)
- 12250 E Iliff Ave#300Aurora, CO 80014-6318Phone: (303) 306-4321Fax: (720) 524-1551
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2026-04-28
- Certified
- 2026-04-28
Frequently asked questions
- What is James Mcgowan's NPI number?
- James Mcgowan's National Provider Identifier (NPI) is 1033175591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Mcgowan's specialty?
- James Mcgowan is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is James Mcgowan located?
- James Mcgowan's practice location on file with NPPES is 850 E Harvard Ave Ste 405, Denver, CO 80210-5077.
- What is James Mcgowan's phone number?
- The practice phone number listed in the NPPES registry for James Mcgowan is (303) 584-8900.
- Does James Mcgowan accept Medicare?
- James Mcgowan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Mcgowan's NPI active?
- Yes — James Mcgowan's NPI (1033175591) is active in the NPPES registry as of the last update on 2026-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.