Dr. Patrick Robert Dahl, MD

  • Fullerton, CA
  • Dermatologist
NPI1033213392PAC ID2062594245
Medicare services, 2024
6,538
Medicare patients, 2024
466
Part D claims, 2024
363
Publications
8
MIPS score, 2024
75
Practice address
301 W Bastanchury Rd, Fullerton, CA 92835
Practice phone
Call (949) 706-2887
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Fullerton Clinical and Surgical Facility

Fullerton, California

See all 6 affiliations

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Dr. Patrick Robert Dahl is a dermatologist in Fullerton, California

Dr. Dahl practices at Fullerton Clinical and Surgical Facility in Fullerton, California.

Dr. Dahl's NPI, 1033213392, was assigned on September 8, 2006. Dr. Dahl graduated from Stanford University School Of Medicine in 1991. Dr. Dahl holds California license G75823.

NPI and contact details
Medicare PAC ID
2062594245
NPI enumeration date
September 8, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(949) 706-2887
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
61
Medical school graduation
1991

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Patrick Robert Dahl practices at Fullerton Clinical and Surgical Facility in Fullerton, California

Dr. Dahl's primary practice is Fullerton Clinical and Surgical Facility, at 301 W Bastanchury Rd, Fullerton, CA 92835 in Orange County. The practice phone is (949) 706-2887.

  • Fullerton Clinical and Surgical Facility
    301 W Bastanchury Rd, Fullerton, CA 92835 · Orange CountyPhone(949) 706-2887

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Patrick Robert Dahl is affiliated with 4 sites of care and 2 medical groups

Dr. Dahl's primary practice is Fullerton Clinical and Surgical Facility in Fullerton, California. Dr. Dahl is also affiliated with Providence St. Jude Medical Center. The medical group on file is Schweiger Dermatology Group, San Pedro. Dmand AI also links Dr. Dahl to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Dahl

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Patrick Robert Dahl's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dahl practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fullerton Clinical and Surgical FacilityAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Patrick Robert Dahl is one of 1,910 dermatologists in California

Dermatology is Dr. Dahl's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Dahl is board certified in dermatology by the American Board of Dermatology. Dmand AI has Dr. Dahl's licenses on file in 4 states: California, Arizona, Minnesota and Nevada.

Specialties and state licenses

  • Dermatology, CaliforniaPrimaryLicense G75823 · 1993 to 2026 · taxonomy 207N00000X
  • Arizona license1999 to 2025
  • Minnesota license1992 to 2017
  • Nevada license1996 to 2011

Clinical focus

Dmand AI lists acute skin infection, benign or precancerous skin growths, contact dermatitis, hives, itchy rashes, scalp rash, skin cyst and skin discoloration among the conditions Dr. Dahl treats.

Dermatologists near Dr. Dahl

Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.

1,910dermatologists in California
8dermatologists in Fullerton

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Patrick Robert Dahl billed Medicare for 6,538 services in 2024

CMS data shows 6,538 Medicare services from Dr. Dahl across 17 procedure codes in 2024, for 466 Medicare patients. Medicare paid $248,717 for them. Every service was in an office.

Medicare services, 20246,538
Medicare patients466
Paid by Medicare$248,717
Procedure codes17

Dr. Dahl's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 3,9032024: 4,83624%
Lab and pathology
2023: 7932024: 88812%
Office and hospital visits
2023: 7512024: 8148%

Dr. Dahl compared with the California median for dermatologists, 2024

  • Dr. Dahl
  • California median
Medicare services
6,538vs 1,7503.7 times
Medicare patients
466vs 37724% above
Part D claims
281vs 36723% below

Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.

Dr. Dahl's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Dahl

Need commercial claims for Dr. Dahl?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dahl and other dermatologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Patrick Robert Dahl treated 466 Medicare patients in 2024, average age 77

CMS counts 466 Medicare patients who saw Dr. Dahl in 2024. The largest group is 65 to 74, with 192 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.08, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Dahl's median patient age at 75, with 44% women.

Medicare patients, 2024466
Average age77
Average risk score1.08

Dr. Dahl's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Dahl's Medicare patients by sex, 2024

  • Women21747%
  • Men24953%

Chronic conditions among Dr. Dahl's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure68%
  3. Arthritis46%
  4. Chronic kidney disease22%
  5. Diabetes22%
  6. Ischemic heart disease22%
  7. Atrial fibrillation20%
  8. Cancer20%

Share of Medicare patients with each condition. A patient can have several.

Dr. Dahl's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 75

Patient panel by sex, all payers

  • Women44%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Patrick Robert Dahl wrote 363 Medicare Part D claims in 2024

In 2024, Dr. Dahl wrote 363 Medicare Part D claims for 124 patients. 98% of them were for generic drugs. CMS names the drug for 281 of them, across 10 drugs with 11 or more claims each, at $4,846 in total drug cost. In 2023, CMS named 293 claims across 9 drugs.

Part D claims, 2024363
Drugs named by CMS10
Total drug cost$4,846
Part D patients124

Dr. Dahl's Part D claims by kind of drug, 2024

  • Generic355 claims98%
  • Brand-name and other8 claims2%

Dr. Dahl's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Dahl's Part D claims, 2024

  • Antibiotics14%51 of 363 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2932024: 2814%

Drugs named by CMS: 10 in 2024, 9 in 2023.

See all prescribing by Dr. Dahl

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Patrick Robert Dahl scored 75 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Dahl for performance year 2024, reported as part of a group. Dr. Dahl accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 475 procedures of skin biopsy by Dr. Dahl, more than 95% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
MIPS final score, 2024
75 of 100

Where Dr. Dahl ranks in Medicare procedure volume

Removal of skin lesions
94th percentile1,127 procedures
Skin biopsy
95th percentile475 procedures
Removal of skin cancer
15th percentile43 procedures
Melanoma (skin cancer) excision
79th percentile27 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Patrick Robert Dahl has 8 publications on record

Dmand AI links 8 papers to Dr. Dahl. The most frequent topics are Skin and Necrosis. Dr. Dahl has published most often in J Am Acad Dermatol. Dr. Dahl's most frequent co-authors are Mazen S. Daoud, MD, Kristina A. Holmkvist, MD and Charles Vincent Perniciaro, MD.

Papers8

Topics Dr. Dahl writes about most

  • Skin
  • Necrosis

Dr. Dahl's most frequent co-authors

Recent publications by Dr. Dahl

See all 8 publications and co-authors

See who Dr. Dahl researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Dahl works with, so you can find a warm path to the right dermatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Patrick Robert Dahl received $506 in industry payments from 2016 to 2018

CMS Open Payments shows 8 general payments to Dr. Dahl from 5 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $250.

General payments to Dr. Dahl by program year, 2016 to 2018

Companies that paid Dr. Dahl the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Dahl

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Patrick Robert Dahl has 4 awards and honors on record

Dmand AI lists 4 awards for Dr. Dahl, most recently Top Doctors:LA Area in 2013.

Awards and honors for Dr. Dahl

  1. 2013
    • Top Doctors:LA Area
    • Top Doctors:San Diego Area
  2. 2012
    • Top Doctors:Southern California
  3. Undated
    • AAD Fellow

Source: Dmand AI Professional Profile Data

Dr. Patrick Robert Dahl graduated from Stanford University School Of Medicine

Dr. Dahl graduated from Stanford University School Of Medicine in 1991. Dr. Dahl is a member of AAD.

  1. Medical schoolStanford University School Of Medicine
  2. Board certified in dermatologyAmerican Board of Dermatology
  3. Board certified in dermatopathologyAmerican Board of Dermatology

Source: Dmand AI Professional Profile Data

Dr. Patrick Robert Dahl accepts plans from 14 insurance carriers

Dr. Dahl is in network with 14 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Dahl accepts, by number of carriers

  1. PPO9
  2. Medicare7
  3. HMO6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Patrick Robert Dahl's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Patrick Robert Dahl

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Patrick Robert Dahl's NPI number?

Dr. Patrick Robert Dahl's NPI number is 1033213392. It was assigned on September 8, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Patrick Robert Dahl?

Dr. Patrick Robert Dahl is a dermatologist in Fullerton, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Dr. Patrick Robert Dahl practice?

Dr. Dahl practices at 301 W Bastanchury Rd, Fullerton, CA 92835. Dr. Dahl's primary practice is Fullerton Clinical and Surgical Facility in Fullerton, California. Dmand AI also links Dr. Dahl to 2 group practices and clinics and 1 medical group.

What is Dr. Patrick Robert Dahl's office phone number?

The practice phone on file for Dr. Dahl is (949) 706-2887.

What is Dr. Patrick Robert Dahl's medical license number?

Dr. Dahl holds California license G75823, one of the licenses on file in 4 states.

Which states has Dr. Patrick Robert Dahl been licensed in?

Dmand AI has state licenses on file for Dr. Dahl in California (1993 to 2026), Arizona (1999 to 2025), Minnesota (1992 to 2017) and Nevada (1996 to 2011).

Which hospitals is Dr. Patrick Robert Dahl affiliated with?

Dr. Dahl is affiliated with Providence St. Jude Medical Center.

What medical group is Dr. Patrick Robert Dahl part of?

Dr. Dahl is linked to Schweiger Dermatology Group, San Pedro. Dmand AI links Dr. Dahl to 1 more medical group.

Does Dr. Patrick Robert Dahl accept Medicare?

Yes. CMS data shows Dr. Dahl billed Medicare for 6,538 services in 2024, and Dr. Dahl accepts Medicare assignment.

What is Dr. Patrick Robert Dahl's MIPS score?

Dr. Dahl's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Patrick Robert Dahl see?

CMS counts 466 Medicare patients who saw Dr. Dahl in 2024, with an average age of 77.

Is Dr. Patrick Robert Dahl board certified?

Yes. Dr. Dahl is board certified in dermatology by the American Board of Dermatology.

What services does Dr. Patrick Robert Dahl bill to Medicare?

In 2024, Dr. Dahl's most billed Medicare services were surgery: skin and soft tissue (17003), lab and pathology test (88305) and office visit, established patient (99213).

Where did Dr. Patrick Robert Dahl go to medical school?

Dr. Dahl graduated from Stanford University School Of Medicine in 1991.

What drugs does Dr. Patrick Robert Dahl prescribe most?

In 2024 Medicare Part D data, Dr. Dahl's most prescribed drugs by claims were Triamcinolone Acetonide, Ketoconazole and Doxycycline Hyclate.

Has Dr. Patrick Robert Dahl received payments from drug or device companies?

CMS Open Payments shows $506 in general payments to Dr. Dahl from 5 companies from 2016 to 2018. The largest total came from Allergan Inc.

How long has Dr. Patrick Robert Dahl been practicing?

Dr. Dahl graduated from medical school in 1991, 35 years ago.

Does Dr. Patrick Robert Dahl do research?

Dmand AI links 8 publications to Dr. Dahl.

Who does Dr. Patrick Robert Dahl publish with?

Dr. Dahl's most frequent co-authors are Mazen S. Daoud, MD (2 shared papers), Kristina A. Holmkvist, MD (2 shared papers) and Charles Vincent Perniciaro, MD (2 shared papers).

What insurance does Dr. Patrick Robert Dahl accept?

Dr. Dahl is in network with 14 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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