Charles Lawson, MD
NPI 1639158470 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Lawson, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1639158470).
Provider details
- NPI number
- 1639158470
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2003018928 (MO)
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
855 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 300 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 155 | $172 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 152 | $16 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 76 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 144 | 57 |
| Meloxicam | 124 | 50 |
| Lisinopril | 108 | 34 |
| Amlodipine Besylate | 89 | 43 |
| Rosuvastatin Calcium | 85 | 35 |
| Levothyroxine Sodium | 75 | 33 |
| Hydrochlorothiazide | 66 |
Practice location
Mailing address
Additional practice locations (1)
- 686 Lester StPoplar Bluff, MO 63901Phone: (573) 686-2411Fax: (573) 686-8452
Registry dates
- Enumerated
- 2006-01-11
- Last updated
- 2024-05-14
- Certified
- 2024-05-14
Frequently asked questions
- What is Charles Lawson's NPI number?
- Charles Lawson's National Provider Identifier (NPI) is 1639158470, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Lawson's specialty?
- Charles Lawson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Lawson located?
- Charles Lawson's practice location on file with NPPES is 8300 Floyd Curl Dr, San Antonio, TX 78229-3931.
- What is Charles Lawson's phone number?
- The practice phone number listed in the NPPES registry for Charles Lawson is (210) 450-9100.
- Does Charles Lawson accept Medicare?
- Charles Lawson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Lawson's NPI active?
- Yes — Charles Lawson's NPI (1639158470) is active in the NPPES registry as of the last update on 2024-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.