Mark Stark, MD
NPI 1629067400 · Gastroenterology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Stark, MD is a Gastroenterology Physician provider in Jacksonville, FL (NPI 1629067400).
Provider details
- NPI number
- 1629067400
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME61416 (FL)
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
30 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) |
|---|---|---|
| Imaging of Digestive Tract Done From the Inside of the Digestive Tract91110 | 19 | $612 |
| Other Procedure on Small Bowel44799 | 11 | $209 |
Typical Medicare-allowed amounts for these services range $209–$612 (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
- 2005-10-14
- Last updated
- 2024-06-10
- Certified
- 2024-06-10
Frequently asked questions
- What is Mark Stark's NPI number?
- Mark Stark's National Provider Identifier (NPI) is 1629067400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stark's specialty?
- Mark Stark is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stark located?
- Mark Stark's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is Mark Stark's phone number?
- The practice phone number listed in the NPPES registry for Mark Stark is (904) 953-2000.
- Does Mark Stark accept Medicare?
- Mark Stark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Stark's NPI active?
- Yes — Mark Stark's NPI (1629067400) is active in the NPPES registry as of the last update on 2024-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.