Physician Profile
Peter L. Karlsberg, M.D.
Unclaimed ProfileAbout Dr. Karlsberg
Listed in the NPI registry as a specialist, Peter L. Karlsberg, M.D. practices in Ventura, CA. Peter graduated from University of California, San Francisco School of Medicine in 1991. Medicare claims data shows Peter provided 12,419 services to 3,959 patients. The services billed most often include aminolevulinic acid hcl for topical administration, 10% gel, 10 mg, destruction of precancer skin growth, 2-14 growths, and destruction of precancer skin growth, 1 growth.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (805) 641-1600
- Email not available
Practice Locations
145 N BRENT ST SUITE 104
Ventura, CA 93003
Procedures Most Often Billed to Medicare
12,419 services · 3,959 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
2,635 | More often than most peers in Specialist |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
985 | More than most peers in Specialist |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
425 | More often than most peers in Specialist |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
357 | More often than most peers in Specialist |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
124 | As often as other peers in Specialist |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
105 | More often than most peers in Specialist |
| Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm | Procedure | 17262 |
86 | More often than most peers in Specialist |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
84 | As often as other peers in Specialist |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
53 | As often as other peers in Specialist |
| Punch biopsy, first skin growth | Procedure | 11104 |
50 | More often than most peers in Specialist |
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.
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 specialists in Ventura 8
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1991 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Peter L. Karlsberg?
Peter L. Karlsberg is a specialist in Ventura, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Peter L. Karlsberg's address?
Peter L. Karlsberg is listed at 145 N Brent St Suite 104, Ventura, CA 93003. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Peter L. Karlsberg?
The number on file is (805) 641-1600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Peter L. Karlsberg?
Peter L. Karlsberg's National Provider Identifier is 1063560605. 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 Peter L. Karlsberg train?
Peter L. Karlsberg attended University of California, San Francisco School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Peter L. Karlsberg have?
Peter L. Karlsberg has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What procedures does Peter L. Karlsberg perform?
According to Medicare billing data, Peter L. Karlsberg 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; provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Peter L. Karlsberg's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Peter L. Karlsberg. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.