Gunnar Clark, MD
NPI 1255626701 · Anesthesiology Physician · Chandler, AZ
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gunnar Clark, MD is a Anesthesiology Physician provider in Chandler, AZ (NPI 1255626701).
Provider details
- NPI number
- 1255626701
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 53950 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
197 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 61 | $90 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 30 | $99 |
| Anesthesia for Other Procedure on Neck Area (1 Year Or Older)00320 | 24 | $80 |
| Anesthesia for Open Or Endoscopic Total Shoulder Joint Replacement01638 | 24 | $96 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 18 | $85 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 14 | $97 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-13
- Last updated
- 2022-07-21
Frequently asked questions
- What is Gunnar Clark's NPI number?
- Gunnar Clark's National Provider Identifier (NPI) is 1255626701, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gunnar Clark's specialty?
- Gunnar Clark is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gunnar Clark located?
- Gunnar Clark's practice location on file with NPPES is 604 W Warner Rd Ste a, Chandler, AZ 85225-2900.
- What is Gunnar Clark's phone number?
- The practice phone number listed in the NPPES registry for Gunnar Clark is (602) 309-4709.
- Does Gunnar Clark accept Medicare?
- Gunnar Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gunnar Clark's NPI active?
- Yes — Gunnar Clark's NPI (1255626701) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.