Quick answers
- Does Diego S. Humphrey accept Medicare assignment?
- Yes. Medicare's clinician data says Diego S. Humphrey accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Diego S. Humphrey see?
- In 2024, CMS data shows 83 Original Medicare patients and 90 services for Diego S. Humphrey. This counts Original Medicare only and measures volume, not quality.
- What is Diego S. Humphrey's NPI number?
- 1073525515. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Diego S. Humphrey, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 83 |
|---|---|
| Services billed to Medicare | 90 |
| Different services or procedures | 2 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)84 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Heart failure58%
- Ischemic heart disease52%
- Diabetes51%
Hospitals where Diego S. Humphrey works
Medicare's Facility Affiliation Data lists Diego S. Humphrey at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370171
- Northeastern Health SystemTahlequah, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370089
Practice locations
Addresses where Diego S. Humphrey is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 S Bliss AveTahlequah, OK 74464 (918) 458‑3100
- 1001 S 41st St E, Three Rivers Health CenterMuskogee, OK 74403 (918) 687‑0201
- 1400 E Downing StTahlequah, OK 74464 (918) 456‑0641
- 27371 S 4410 RdVinita, OK 74301 (918) 256‑4800
Group practices
Medicare enrollment lists Diego S. Humphrey as a member of these groups (CMS data updated October 2, 2026).
- Cherokee Nation449 clinicians in the group
- Northeastern Health System103 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oklahoma →
Other cardiologists in Tahlequah
Clinicians with the same Medicare primary specialty in Tahlequah, OK — not a recommendation.
Other clinicians in Cherokee Nation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073525515 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians