What is Fred Shahan's specialty?

Fred Shahan (NPI 1811913221) is a Medicare-billing provider whose primary specialty is Dermatology in San Diego, CA.

Where does Fred Shahan practice?

Fred Shahan practices in San Diego, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1811913221.

How much does Medicare pay Fred Shahan?

Fred Shahan (NPI 1811913221) received approximately $1.2M in total Medicare Part B payments, serving 1,254 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1811913221

Fred ShahanMD

PRACTICEDANIEL J MARNELL MD APCSee all providers at this practice →

DermatologySan Diego, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,648

Unique beneficiaries

—

Total services

10,565

Distinct HCPCS

Medicare payment

$1.2M

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

1,648

Beneficiaries

—

Total drug cost

$417K

Distinct drugs

Brand share

8.4%

Top prescribed drugs

Ketoconazole226 claims

Clobetasol Propionate196 claims

Triamcinolone Acetonide189 claims

Fluocinonide114 claims

Cephalexin110 claims

QUALITY · MIPS · 2024

Final MIPS score

15.8

Quality

0.0

Cost

52.8

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$4K

Payment records

By payment type

Food and Beverage$4K

Travel and Lodging$32

Top paying entities

Food and Beverage$4K

Travel and Lodging$32

REFERRAL NETWORK

Where Fred Shahan'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FRANCIS, DAVID	558	1,839
Anthony Huynh Dermatology · El Centro, CA	177	334
Unilab Corporation Clinical Laboratory · West Hills, CA	152	376
Daniel Nguyen Dermatology · Anaheim, CA	101	193
William Watts Pathology · San Diego, CA	71	135
Seong Ra Pathology · Los Angeles, CA	58	97
Jock Perkins Physician Assistant · Nampa, ID	54	103
Cheri Ponce Physician Assistant · Fresno, CA	39	79
Robert Stephenson Internal Medicine · Encinitas, CA	32	94
REGENTS OF THE UNIVERSITY OF CALIFORNIA	31	115
Diana Dang Dermatology · El Centro, CA	31	49
PIONEERS MEMORIAL HEALTHCARE DISTRICT	29	49

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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