Karwin Mccain, MD
NPI 1922282847 · Physical Medicine & Rehabilitation Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karwin Mccain, MD is a Physical Medicine & Rehabilitation Physician provider in San Antonio, TX (NPI 1922282847).
Provider details
- NPI number
- 1922282847
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,993 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 | 676 | $80 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 631 | $132 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 473 | $50 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 120 | $120 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 68 | $82 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians and |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 233 | 226 |
| Celecoxib | 177 | 171 |
| Pregabalin | 166 | 157 |
| Methocarbamol | 44 | 43 |
| Gabapentin | 43 | 41 |
| Pantoprazole Sodium | 43 | 40 |
| Atorvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-27
- Last updated
- 2011-05-02
Frequently asked questions
- What is Karwin Mccain's NPI number?
- Karwin Mccain's National Provider Identifier (NPI) is 1922282847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karwin Mccain's specialty?
- Karwin Mccain is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Karwin Mccain located?
- Karwin Mccain's practice location on file with NPPES is 9643 Huebner Rd, San Antonio, TX 78240-1751.
- What is Karwin Mccain's phone number?
- The practice phone number listed in the NPPES registry for Karwin Mccain is (210) 614-8222.
- Does Karwin Mccain accept Medicare?
- Karwin Mccain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karwin Mccain's NPI active?
- Yes — Karwin Mccain's NPI (1922282847) is active in the NPPES registry as of the last update on 2011-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.