Marshall Packard, MD
NPI 1538175443 · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Undersea and Hyperbaric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Packard, MD is a Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider in San Antonio, TX (NPI 1538175443).
Provider details
- NPI number
- 1538175443
- Entity type
- Individual
- Primary specialty
- Undersea and Hyperbaric Medicine (Preventive Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- L1419 (TX)
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
1 documented practice location
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
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2018-04-03
Frequently asked questions
- What is Marshall Packard's NPI number?
- Marshall Packard's National Provider Identifier (NPI) is 1538175443, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Packard's specialty?
- Marshall Packard is listed in the NPPES registry with a primary specialty of Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Marshall Packard located?
- Marshall Packard's practice location on file with NPPES is 414 Navarro St Ste 502, San Antonio, TX 78205-2580.
- What is Marshall Packard's phone number?
- The practice phone number listed in the NPPES registry for Marshall Packard is (210) 223-1145.
- Does Marshall Packard accept Medicare?
- Marshall Packard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Packard's NPI active?
- Yes — Marshall Packard's NPI (1538175443) is active in the NPPES registry as of the last update on 2018-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.