Lynn Gries, MD
NPI 1780730309 · Trauma Surgery Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lynn Gries, MD is a Trauma Surgery Physician provider in Tucson, AZ (NPI 1780730309).
Provider details
- NPI number
- 1780730309
- Entity type
- Individual
- Primary specialty
- Trauma Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 44980 (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
19 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
346 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 133 | $76 |
| Critical Care, First 30-74 Minutes99291 | 45 | $199 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 38 | $117 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 36 | $126 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 26 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-26
- Last updated
- 2019-11-25
Frequently asked questions
- What is Lynn Gries's NPI number?
- Lynn Gries's National Provider Identifier (NPI) is 1780730309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lynn Gries's specialty?
- Lynn Gries is listed in the NPPES registry with a primary specialty of Trauma Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Lynn Gries located?
- Lynn Gries's practice location on file with NPPES is University of Arizona, Tucson, AZ 85724-5063.
- What is Lynn Gries's phone number?
- The practice phone number listed in the NPPES registry for Lynn Gries is (520) 626-0478.
- Does Lynn Gries accept Medicare?
- Lynn Gries is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lynn Gries's NPI active?
- Yes — Lynn Gries's NPI (1780730309) is active in the NPPES registry as of the last update on 2019-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.