2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1194143438 M.D., MBA
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LANCE CHAPMAN, M.D., MBA

MOHS-Micrographic Surgery Physician in LOS ANGELES, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
809
Medicare Part D claims · 365 beneficiaries · MOHS-Micrographic Surgery Physician avg: 607
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99.5875/100
▲ 16 pts above national avg 83.1 · [object Object]
Industry payments
$2.5K
105 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: LANCE CHAPMAN, M.D., MBA is a MOHS-Micrographic Surgery Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 809 claims across 365 beneficiaries — 8% brand-name prescribing . Their CMS MIPS Final Score of 99.5875/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $2.5K across 105 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: LANCE CHAPMAN, M.D., MBA reported a CMS MIPS final score of 99.5875 out of 100, above the 83.1 national average, and filed 809 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LANCE CHAPMAN, M.D., MBA practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

LANCE CHAPMAN, M.D., MBA at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/03/2014

NPI 1194143438

Primary specialty

MOHS-Micrographic Surgery Physician

Niche

1,102 US NPIs in this specialty

Medicare Part D claims

809 33% vs specialty avg

2023 prescription claims

Specialty avg: 607

MIPS final score

99.5875/100 16.48750000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How MOHS-Micrographic Surgery Physician compares to other specialties among California providers

California providers

MOHS-Micrographic Surgery Physician share within California

1. MOHS-Micrographic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
MOHS-Micrographic Surgery Physician share within California

Medicare quality performance — MIPS

LANCE CHAPMAN, M.D., MBA's 2023 MIPS final score plotted against the MOHS-Micrographic Surgery Physician national average

High performer (top quartile)
MIPS Final Score
99.5875/100
vs 83.1 national avg · 2023 performance year

MIPS final score (MOHS-Micrographic Surgery Physician) — 99.5875/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (MOHS-Micrographic Surgery Physician) — 99.5875/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

LANCE CHAPMAN, M.D., MBA is a MOHS-Micrographic Surgery Physician provider practicing in LOS ANGELES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., MBA. NPI: 1194143438. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

LANCE CHAPMAN, M.D., MBA appears in the CMS NPPES registry as a MOHS-Micrographic Surgery Physician provider holding M.D., MBA credentials at 4733 W SUNSET BLVD FL 3, LOS ANGELES, CA, 90027, with a listed phone of (323) 783-0339. NPI 1194143438 was issued on 04/03/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAPMAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 809 prescription claims written by this provider, covering 365 Medicare beneficiaries and totaling roughly $231K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 1.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.5875/100 for the 2023 performance year (Quality 99.175), compared with the national average of 83.1.

MOHS-Micrographic Surgery Physician is a narrow specialty nationwide, with 1,102 enrolled providers across 52 states and an average of 607 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4733 W SUNSET BLVD FL 3
LOS ANGELES, CA 90027

Provider Details

NPI 1194143438
Specialty MOHS-Micrographic Surgery Physician
Credentials M.D., MBA
Gender Male
NPI Issued 04/03/2014

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

99.5875
Final Score
Avg: 83.1
99.175
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where LANCE CHAPMAN, M.D., MBA bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

HOWARD FEIN MD INC
SEAL BEACH, CA
ISLAND DERMATOLOGY, INC.
HESPERIA, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for LANCE CHAPMAN, M.D., MBA. Source: openpaymentsdata.cms.gov.

Total received

$2.5K

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to LANCE CHAPMAN, M.D., MBA. To verify LANCE CHAPMAN, M.D., MBA's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

LANCE CHAPMAN, M.D., MBA — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 809 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

809
Total Claims
$231K
Total Drug Cost
365
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
940
Total Day Supply
21,994
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$203K
Generic Drug Cost
$29K
Opioid Claims
14 (1.7% rate)
Antibiotic Claims
182

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.31
Gender Split
51% female / 49% male
Age Distribution
<65: 18, 65-74: 167, 75-84: 136, 85+: 44

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Doxycycline Hyclate
96
Mupirocin
72
Ketoconazole
67
Triamcinolone Acetonide
66
Clobetasol Propionate
64
Doxycycline Monohydrate
64
Clotrimazole-Betamethasone
Clotrimazole/Betamethasone Dip
41
Fluocinolone Acetonide
27
Otezla
Apremilast
27
Ciclopirox
23

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

MOHS-Micrographic Surgery Physician Overview

How LANCE CHAPMAN, M.D., MBA fits within the MOHS-Micrographic Surgery Physician landscape nationally.

1,102
MOHS-Micrographic Surgery Physician Providers in US
52
States with MOHS-Micrographic Surgery Physician
607
Avg Claims per Provider

LANCE CHAPMAN, M.D., MBA's 809 claims are above the specialty average of 607.

Nearby MOHS-Micrographic Surgery Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as CHAPMAN.

Compare MOHS-Micrographic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LANCE CHAPMAN, M.D., MBA's specialty?
LANCE CHAPMAN, M.D., MBA specializes in MOHS-Micrographic Surgery Physician and practices in LOS ANGELES, California. Credentials: M.D., MBA.
How much does LANCE CHAPMAN, M.D., MBA prescribe under Medicare Part D?
In 2023, LANCE CHAPMAN, M.D., MBA wrote 809 Medicare Part D claims totaling $231K in drug costs for 365 beneficiaries.
What is LANCE CHAPMAN, M.D., MBA's Medicare quality score?
LANCE CHAPMAN, M.D., MBA has a CMS MIPS Final Score of 99.5875/100 (Quality: 99.175). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is LANCE CHAPMAN, M.D., MBA located?
LANCE CHAPMAN, M.D., MBA is located at 4733 W SUNSET BLVD FL 3, LOS ANGELES, CA, 90027. Phone: (323) 783-0339.
What is LANCE CHAPMAN, M.D., MBA's NPI number?
LANCE CHAPMAN, M.D., MBA's National Provider Identifier (NPI) is 1194143438, issued on 04/03/2014.
Does LANCE CHAPMAN, M.D., MBA prescribe more brand-name or generic drugs?
LANCE CHAPMAN, M.D., MBA's prescribing is 8% brand-name and 92% generic drugs by claim count, with $203K in brand drug costs.
Does LANCE CHAPMAN, M.D., MBA prescribe opioids?
Yes, LANCE CHAPMAN, M.D., MBA had 14 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many MOHS-Micrographic Surgery Physician providers are there in the US?
There are 1,102 MOHS-Micrographic Surgery Physician providers across 52 states in the US. The average MOHS-Micrographic Surgery Physician provider writes 607 Medicare Part D claims per year.
What drugs does LANCE CHAPMAN, M.D., MBA prescribe most often?
Based on 2023 Medicare Part D data, LANCE CHAPMAN, M.D., MBA's most frequently prescribed drugs include Doxycycline Hyclate, Mupirocin, Ketoconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LANCE CHAPMAN, M.D., MBA accept Medicare?
LANCE CHAPMAN, M.D., MBA appears in CMS Medicare data with 809 Part D claims and 365 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LANCE CHAPMAN, M.D., MBA's credentials?
LANCE CHAPMAN, M.D., MBA's NPI is 1194143438 with credentials M.D., MBA. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology