Dr. Lance William Chapman, MBA, MD

  • Seal Beach, CA
  • Mohs-micrographic surgery physician
NPI1194143438PAC ID4587950670
Medicare services, 2024
8,944
Medicare patients, 2024
677
Part D claims, 2024
821
MIPS score, 2024
99
Industry payments
$10,633
Practice address
13928 Seal Beach Blvd, Seal Beach, CA 90740
Practice phone
Call (310) 541-7800
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Pacific Dermatology Specialists

Seal Beach, California

See all 5 affiliations

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Dr. Lance William Chapman is a mohs-micrographic surgery physician in Seal Beach, California

Dr. Chapman practices at Pacific Dermatology Specialists in Seal Beach, California.

Dr. Chapman's NPI, 1194143438, was assigned on April 3, 2014. Dr. Chapman graduated from David Geffen School of Medicine at UCLA in 2014. Dr. Chapman holds California license A138208.

NPI and contact details
Medicare PAC ID
4587950670
NPI enumeration date
April 3, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 541-7800
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Dr. Lance William Chapman practices at Pacific Dermatology Specialists in Seal Beach, California

Dr. Chapman's primary practice is Pacific Dermatology Specialists, at 13928 Seal Beach Blvd, Seal Beach, CA 90740 in Orange County. The practice phone is (310) 541-7800.

  • Pacific Dermatology Specialists
    13928 Seal Beach Blvd, Seal Beach, CA 90740 · Orange CountyPhone(310) 541-7800

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

Dr. Lance William Chapman is affiliated with 3 sites of care and 2 medical groups

Dr. Chapman's primary practice is Pacific Dermatology Specialists in Seal Beach, California. The medical group on file is Pacific Dermatology Specialists. Dmand AI also links Dr. Chapman to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Chapman

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

Dmand AI tracks the EHR system at Dr. Lance William Chapman's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chapman practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Pacific Dermatology SpecialistsAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lance William Chapman is one of 156 mohs-micrographic surgery physicians in California

Mohs-micrographic surgery is Dr. Chapman's primary specialty in the NPI Registry, under taxonomy code 207ND0101X. Dr. Chapman is board certified in dermatology by the American Board of Dermatology. Dr. Chapman is licensed in California.

Specialties and state licenses

  • Mohs-micrographic surgery, CaliforniaPrimaryLicense A138208 · 2015 to 2027 · taxonomy 207ND0101X

Clinical focus

Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, contact dermatitis, facial skin infection, hives and itchy rashes among the conditions Dr. Chapman treats.

Mohs-micrographic surgery physicians near Dr. Chapman

Counts of mohs-micrographic surgery physicians with a Dmand AI profile, by place and practice. Each opens the list.

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

Dr. Lance William Chapman billed Medicare for 8,944 services in 2024

CMS data shows 8,944 Medicare services from Dr. Chapman across 33 procedure codes in 2024, for 677 Medicare patients. Medicare paid $1,505,798 for them. Every service was in an office.

Medicare services, 20248,944
Medicare patients677
Paid by Medicare$1.5M
Procedure codes33

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

  • 2023
  • 2024
Surgery
2023: 7,2552024: 7,3471%
Office and hospital visits
2023: 1,4052024: 1,21114%
Drugs given in the office
2023: 2402024: 20116%
Lab and pathology
2023: 732024: 159118%
Tests and treatments
2023: 252024: 264%

Dr. Chapman compared with the California median for mohs-micrographic surgery physicians, 2024

  • Dr. Chapman
  • California median
Medicare services
8,944vs 2,6453.4 times
Medicare patients
677vs 52828% above
Part D claims
732vs 2253.3 times

Medians across 153 mohs-micrographic surgery physicians in California with Dmand AI profiles that report each measure.

Dr. Chapman'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. Chapman

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

Dr. Lance William Chapman treated 677 Medicare patients in 2024, average age 76

CMS counts 677 Medicare patients who saw Dr. Chapman in 2024. The largest group is 65 to 74, with 296 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chapman's median patient age at 64, with 52% women.

Medicare patients, 2024677
Average age76
Average risk score1.17
Also on Medicaid13%

Dr. Chapman's Medicare patients by age, 2024

Dr. Chapman's Medicare patients by sex, 2024

  • Women32648%
  • Men35152%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis42%
  4. Diabetes29%
  5. Chronic kidney disease24%
  6. Ischemic heart disease23%
  7. Atrial fibrillation19%
  8. Heart failure18%

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

Dr. Chapman's patients across all payers

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

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women52%
  • Men48%

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

Dr. Lance William Chapman wrote 821 Medicare Part D claims in 2024

In 2024, Dr. Chapman wrote 821 Medicare Part D claims for 414 patients. 97% of them were for generic drugs. CMS names the drug for 732 of them, across 16 drugs with 11 or more claims each, at $79,290 in total drug cost. In 2023, CMS named 724 claims across 21 drugs.

Part D claims, 2024821
Drugs named by CMS16
Total drug cost$79,290
Part D patients414

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

  • Generic793 claims97%
  • Brand-name28 claims3%

Dr. Chapman'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. Chapman's Part D claims, 2024

  • Opioids3%21 of 821 claims
  • Antibiotics38%309 of 821 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: 7242024: 7321%

Drugs named by CMS: 16 in 2024, 21 in 2023.

See all prescribing by Dr. Chapman

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. Lance William Chapman scored 99 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Chapman for performance year 2024, reported as part of a group. Dr. Chapman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 2,681 procedures of removal of skin lesions by Dr. Chapman, more than 99% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Chapman's MIPS scores, performance year 2024

  • 99of 100Final score
  • 99of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Chapman ranks in Medicare procedure volume

Removal of skin lesions
99th percentile2,681 procedures
Removal of skin cancer
97th percentile1,805 procedures
Skin biopsy
99th percentile930 procedures
Melanoma (skin cancer) excision
99th percentile526 procedures
Removal of tissue
70th percentile21 procedures

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

Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)

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. Lance William Chapman received $10,633 in industry payments from 2017 to 2025

CMS Open Payments shows 465 general payments to Dr. Chapman from 35 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $2,821.

General payments to Dr. Chapman by program year, 2017 to 2025

General payments to Dr. Chapman by kind, 2017 to 2025

$10.6Kin total
  • Food and beverage$10,47499%
  • Education$1591%

Companies that paid Dr. Chapman the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Chapman

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

Dr. Lance William Chapman has 1 award and honors on record

Dmand AI lists 1 award for Dr. Chapman.

Awards and honors for Dr. Chapman

  1. Undated
    • AOA Inductee 2011

Source: Dmand AI Professional Profile Data

Dr. Lance William Chapman graduated from David Geffen School of Medicine at UCLA

Dr. Chapman graduated from David Geffen School of Medicine at UCLA in 2014.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in dermatologyAmerican Board of Dermatology

Source: Dmand AI Professional Profile Data

Dr. Lance William Chapman accepts plans from 15 insurance carriers

Dr. Chapman is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Chapman accepts, by number of carriers

  1. PPO10
  2. Medicare7
  3. HMO6
  4. EPO5
  5. POS5

Source: Dmand AI Insurance Network Data

Sources for Dr. Lance William Chapman'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)
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. Lance William Chapman

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. Lance William Chapman's NPI number?

Dr. Lance William Chapman's NPI number is 1194143438. It was assigned on April 3, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Lance William Chapman?

Dr. Lance William Chapman is a mohs-micrographic surgery physician in Seal Beach, California. The primary specialty in the NPI Registry is MOHS-Micrographic Surgery Physician (taxonomy code 207ND0101X).

Where does Dr. Lance William Chapman practice?

Dr. Chapman practices at 13928 Seal Beach Blvd, Seal Beach, CA 90740. Dr. Chapman's primary practice is Pacific Dermatology Specialists in Seal Beach, California. Dmand AI also links Dr. Chapman to 2 group practices and clinics and 1 medical group.

What is Dr. Lance William Chapman's office phone number?

The practice phone on file for Dr. Chapman is (310) 541-7800.

What is Dr. Lance William Chapman's medical license number?

Dr. Chapman holds California license A138208.

What medical group is Dr. Lance William Chapman part of?

Dr. Chapman is linked to Pacific Dermatology Specialists. Dmand AI links Dr. Chapman to 1 more medical group.

Does Dr. Lance William Chapman accept Medicare?

Yes. CMS data shows Dr. Chapman billed Medicare for 8,944 services in 2024, and Dr. Chapman accepts Medicare assignment.

What is Dr. Lance William Chapman's MIPS score?

Dr. Chapman's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.

How many Medicare patients does Dr. Lance William Chapman see?

CMS counts 677 Medicare patients who saw Dr. Chapman in 2024, with an average age of 76.

Is Dr. Lance William Chapman board certified?

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

Show 6 more questionsShow fewer questions

What services does Dr. Lance William Chapman bill to Medicare?

In 2024, Dr. Chapman's most billed Medicare services were surgery: skin and soft tissue (17110), surgery: skin and soft tissue (17003) and office visit, established patient (99213).

Where did Dr. Lance William Chapman go to medical school?

Dr. Chapman graduated from David Geffen School of Medicine at UCLA in 2014.

What drugs does Dr. Lance William Chapman prescribe most?

In 2024 Medicare Part D data, Dr. Chapman's most prescribed drugs by claims were Doxycycline Monohydrate, Mupirocin and Ketoconazole.

Has Dr. Lance William Chapman received payments from drug or device companies?

CMS Open Payments shows $10,633 in general payments to Dr. Chapman from 35 companies from 2017 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Lance William Chapman been practicing?

Dr. Chapman graduated from medical school in 2014, 12 years ago.

What insurance does Dr. Lance William Chapman accept?

Dr. Chapman is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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