Mark Gilbert, M.D.
NPI 1669412763 · Emergency Medicine Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gilbert, M.D. is a Emergency Medicine Physician provider in Chattanooga, TN (NPI 1669412763).
Provider details
- NPI number
- 1669412763
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 18853 (TN)
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
20 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
100 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 75 | $63 |
| Removal of Tissue From Wound, 20.0 Sq Cm Or Less97597 | 25 | $34 |
Typical Medicare-allowed amounts for these services range $34–$63 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2007-07-09
Frequently asked questions
- What is Mark Gilbert's NPI number?
- Mark Gilbert's National Provider Identifier (NPI) is 1669412763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gilbert's specialty?
- Mark Gilbert is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gilbert located?
- Mark Gilbert's practice location on file with NPPES is 975 E 3rd St, Chattanooga, TN 37403-2103.
- What is Mark Gilbert's phone number?
- The practice phone number listed in the NPPES registry for Mark Gilbert is (423) 778-7296.
- Does Mark Gilbert accept Medicare?
- Mark Gilbert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gilbert's NPI active?
- Yes — Mark Gilbert's NPI (1669412763) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.