What is Peter Karlsberg's specialty?

Peter Karlsberg (NPI 1063560605) is a Medicare-billing provider whose primary specialty is Dermatology in Ventura, CA.

Where does Peter Karlsberg practice?

Peter Karlsberg practices in Ventura, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1063560605.

How much does Medicare pay Peter Karlsberg?

Peter Karlsberg (NPI 1063560605) received approximately $394K in total Medicare Part B payments, serving 1,170 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1063560605

Peter KarlsbergM.D.

DermatologyVentura, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

4,094

Unique beneficiaries

—

Total services

12,562

Distinct HCPCS

Medicare payment

$362K

Peer benchmark

Total Medicare services vs. 1,546 Dermatology providers in CA — top quintile (cohort median 2,504).

PRESCRIBING · PART D · 2024

Total Rx claims

661

Beneficiaries

—

Total drug cost

$11K

Distinct drugs

Brand share

3.8%

Top prescribed drugs

Triamcinolone Acetonide192 claims

Doxycycline Monohydrate90 claims

Ketoconazole82 claims

Mupirocin69 claims

Clobetasol Propionate45 claims

QUALITY · MIPS · 2024

Final MIPS score

0.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

Payment records

By payment type

Food and Beverage$4

Top paying entities

Food and Beverage$4

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050394

Hospital

REFERRAL NETWORK

Where Peter Karlsberg's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 10 inbound referrers · 20 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	90	182
COMMUNITY MEMORIAL HEALTH SYSTEM	81	165
Pacific Point Laboratories, Inc. Clinical Laboratory · San Luis Obispo, CA	51	73
Pacific Diagnostic Laboratories Clinical Laboratory · Santa Barbara, CA	21	33
BERN, SAMUEL	15	26
Bruce Ragsdale Pathology · San Luis Obispo, CA	14	17
Bryant Lum Ophthalmology · Ventura, CA	13	32
Frank Stuhr Podiatry · Ventura, CA	13	14
Steven Chang Ophthalmology · Ventura, CA	11	24
BYERS, HUGH	11	14

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Pacific Point Laboratories, Inc. Clinical Laboratory · San Luis Obispo, CA	223	370
Johanna Moore Pathology · Santa Maria, CA	114	148
COMMUNITY MEMORIAL HEALTH SYSTEM	95	202
Unilab Corporation Clinical Laboratory · West Hills, CA	76	164
Bruce Ragsdale Pathology · San Luis Obispo, CA	64	91
Kurt Lundquist Pathology · San Luis Obispo, CA	53	67
BYERS, HUGH	50	61
Michele Ayans Physician Assistant · Ventura, CA	28	49
Pacific Diagnostic Laboratories Clinical Laboratory · Santa Barbara, CA	26	38
COUNTY OF VENTURA	18	160
BERN, SAMUEL	18	34
Bryant Lum Ophthalmology · Ventura, CA	14	20

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events