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Edit this profileAt a glance
- 355 Lennon Ln, Suite 355, Walnut Creek, CA 94598
About Dr. Bortz
Based in Walnut Creek, CA, Jeffrey T. Bortz, M.D. is listed in the NPI registry under dermatology. Jeffrey graduated from University of Iowa, Rj & L Carver College of Medicine in 1989. Jeffrey is also listed as specializing in dermatopathology and mohs surgery / dermatologic surgery. According to Medicare claims data, Jeffrey cared for 1,066 Medicare patients across 1,404 services. The services billed most often include removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks, removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1710191382 identifies this record in the national registry.
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
- (925) 932-7704
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
355 LENNON LN SUITE 355
Walnut Creek, CA 94598
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
1,404 services · 1,066 patients · 24 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
324 | More often than most peers in Dermatology |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
310 | More often than most peers in Dermatology |
| Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | Procedure | 13132 |
62 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
59 | Less often than most peers in Dermatology |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | Procedure | 12032 |
52 | More often than most peers in Dermatology |
| Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks | Procedure | 17313 |
43 | As often as other peers in Dermatology |
| Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm | Procedure | 13121 |
42 | As often as other peers in Dermatology |
| Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less | Procedure | 14060 |
36 | More often than most peers in Dermatology |
| Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less | Procedure | 15260 |
30 | 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 |
29 | As often as other 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 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other dermatologists in Walnut Creek 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Iowa, Rj & L Carver College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at University of Iowa, Rj & L Carver College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Jeffrey T. Bortz's specialty?
Jeffrey T. Bortz is a dermatologist (skin doctor) in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
Where can I find Jeffrey T. Bortz?
Jeffrey T. Bortz is listed at 355 Lennon Ln Suite 355, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Jeffrey T. Bortz?
The number on file is (925) 932-7704. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Jeffrey T. Bortz's NPI number?
Jeffrey T. Bortz's National Provider Identifier is 1710191382. 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
What is Jeffrey T. Bortz's education?
Jeffrey T. Bortz attended University of Iowa, Rj & L Carver College of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Jeffrey T. Bortz been practicing?
Jeffrey T. Bortz has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What is Jeffrey T. Bortz known for?
According to Medicare billing data, Jeffrey T. Bortz performs procedures including removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks, removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks and complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jeffrey T. Bortz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jeffrey T. Bortz. If this is you, claiming it is free.
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