Mark Dearden, MD
NPI 1770556854 · Anesthesiology Physician · Fort Sam Houston, TX
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Dearden, MD is a Anesthesiology Physician provider in Fort Sam Houston, TX (NPI 1770556854).
Provider details
- NPI number
- 1770556854
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A109877 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 1100 Wilford Hall Loop Bldg 4554Jbsa Lackland, TX 78236-5638Phone: (210) 292-6255
Registry dates
- Enumerated
- 2006-02-09
- Last updated
- 2024-06-10
- Certified
- 2024-06-10
Frequently asked questions
- What is Mark Dearden's NPI number?
- Mark Dearden's National Provider Identifier (NPI) is 1770556854, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Dearden's specialty?
- Mark Dearden is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Dearden located?
- Mark Dearden's practice location on file with NPPES is 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234-4504.
- What is Mark Dearden's phone number?
- The practice phone number listed in the NPPES registry for Mark Dearden is (210) 539-9582.
- Does Mark Dearden accept Medicare?
- Mark Dearden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Dearden's NPI active?
- Yes — Mark Dearden's NPI (1770556854) 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.