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Edit this profileAt a glance
- 18540 Sigma Road, San Antonio, TX 78258
About Dr. Walker
Lisa C. Walker, M.D. practices dermatology in San Antonio, TX. Lisa is a 1998 graduate of University of Texas Medical School at San Antonio. According to Medicare claims data, Lisa cared for 1,797 Medicare patients across 3,505 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and destruction of precancer skin growth, 1 growth. The provider's National Provider Identifier (NPI) is 1578571816.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (210) 490-4661
- Email not available
Practice Locations
18540 SIGMA ROAD
San Antonio, TX 78258
Conditions Commonly Evaluated or Treated
Within Dermatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Autoimmune and connective tissue
Cancer care
Pediatric and genetic
Rashes & allergy
Wounds & skin
Most searched conditions
Acne and follicular disorders
Eczema and inflammatory skin disease
Infections and infestations
Pigment, growths, and benign lesions
Skin cancer
Urticaria, itch, and vascular
Infections
Skin growths
Procedures & services
Bladder & bowel
Cosmetic & plastics
Cosmetic dermatology
Diagnostic procedures
- Dermoscopy
- Excisional skin biopsy
- Punch biopsy
- Shave biopsy
- Skin scraping for fungal or mite testing
- Patch testing
- Skin biopsy
Lesion treatment
- Chemical treatment of skin lesions
- Incision and drainage of an abscess
- Intralesional medication injection
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
Medical dermatology treatment
Skin and Scars
Skin cancer surgery
Skin growths
Wound Care
Most searched procedures
Cosmetic
Cosmetic and minor surgery
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Procedures Most Often Billed to Medicare
3,505 services · 1,797 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
1,161 | More often than most peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
411 | More often than most peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
359 | More often than most peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
203 | More often than most peers in Dermatology |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
82 | More often than most peers in Dermatology |
| Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm | Procedure | 17261 |
24 | As often as other peers in Dermatology |
| Injection into skin growth, 1-7 growths | Procedure | 11900 |
21 | As often as other peers in Dermatology |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm | Procedure | 12052 |
16 | Less often than most peers in Dermatology |
| Punch biopsy, first skin growth | Procedure | 11104 |
16 | As often as other peers in Dermatology |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
14 | Less often than most peers in Dermatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other dermatologists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other dermatologists in San Antonio 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Texas Medical School at San Antonio 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at University of Texas Medical School at San Antonio 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 7
Providers in TX who bill this service to Medicare most often.
Common questions
What does Lisa C. Walker specialize in?
Lisa C. Walker is a dermatologist (skin doctor) in San Antonio, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where is Lisa C. Walker located?
Lisa C. Walker is listed at 18540 Sigma Road, San Antonio, TX 78258. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Lisa C. Walker's phone number?
The number on file is (210) 490-4661. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Lisa C. Walker's NPI number?
Lisa C. Walker's National Provider Identifier is 1578571816. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Lisa C. Walker train?
Lisa C. Walker attended University of Texas Medical School at San Antonio, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Lisa C. Walker been practicing?
Lisa C. Walker has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does Lisa C. Walker do most often?
According to Medicare billing data, Lisa C. Walker performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and destruction of skin growth, 1-14 growths, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Lisa C. Walker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Lisa C. Walker. If this is you, claiming it is free.
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