Spencer Lewis, M.D.
NPI 1245596063 · Family Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Lewis, M.D. is a Family Medicine Physician provider in San Antonio, TX (NPI 1245596063).
Provider details
- NPI number
- 1245596063
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- Q5471 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 367 | 131 |
| Metformin Hcl | 181 | 64 |
| Lisinopril | 172 | 56 |
| Losartan Potassium | 126 | 48 |
| Hydrochlorothiazide | 89 | 33 |
| Glipizide | 86 | 35 |
| Levothyroxine Sodium | 78 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$156 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-05
- Last updated
- 2020-04-23
- Certified
- 2020-04-23
Frequently asked questions
- What is Spencer Lewis's NPI number?
- Spencer Lewis's National Provider Identifier (NPI) is 1245596063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Lewis's specialty?
- Spencer Lewis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Lewis located?
- Spencer Lewis's practice location on file with NPPES is 3750 Commercial Ave, San Antonio, TX 78221-3117.
- What is Spencer Lewis's phone number?
- The practice phone number listed in the NPPES registry for Spencer Lewis is (210) 922-7000.
- Does Spencer Lewis accept Medicare?
- Spencer Lewis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Lewis's NPI active?
- Yes — Spencer Lewis's NPI (1245596063) is active in the NPPES registry as of the last update on 2020-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.