Tanner Gregory, MD
NPI 1427589985 · Anesthesiology Physician · Greenwood Village, CO
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tanner Gregory, MD is a Anesthesiology Physician provider in Greenwood Village, CO (NPI 1427589985).
Provider details
- NPI number
- 1427589985
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
213 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Ultrasonic Guidance for Blood Vessel Access76937 | 43 | $13 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 28 | $42 |
| Anesthesia for X-Ray on Artery of Brain, Heart, Or Chest01926 | 25 | $248 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older)36556 | 17 | $81 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 | 16 | $103 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 16 | $17 |
Practice location
Mailing address
Additional practice locations (1)
- 3181 Sw Sam Jackson Park RdPortland, OR 97239-3011Phone: (503) 494-8211
Registry dates
- Enumerated
- 2017-03-25
- Last updated
- 2022-06-27
- Certified
- 2022-06-27
Frequently asked questions
- What is Tanner Gregory's NPI number?
- Tanner Gregory's National Provider Identifier (NPI) is 1427589985, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tanner Gregory's specialty?
- Tanner Gregory is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Tanner Gregory located?
- Tanner Gregory's practice location on file with NPPES is 8000 E Maplewood Ave Ste 200, Greenwood Village, CO 80111-4727.
- What is Tanner Gregory's phone number?
- The practice phone number listed in the NPPES registry for Tanner Gregory is (303) 438-3999.
- Does Tanner Gregory accept Medicare?
- Tanner Gregory is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tanner Gregory's NPI active?
- Yes — Tanner Gregory's NPI (1427589985) is active in the NPPES registry as of the last update on 2022-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.