2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1598988057 M.D., PH.D.
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ARNOLD LEE, M.D., PH.D.

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
471
Medicare Part D claims · 187 beneficiaries · MOHS-Micrographic Surgery Physician avg: 607
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ARNOLD LEE, M.D., PH.D. is a MOHS-Micrographic Surgery Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 471 claims across 187 beneficiaries — 23% brand-name prescribing .

What stands out: ARNOLD LEE, M.D., PH.D. filed 471 Medicare Part D claims in 2023 across LOS ANGELES, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ARNOLD LEE, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ARNOLD LEE, M.D., PH.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/11/2007

NPI 1598988057

Primary specialty

MOHS-Micrographic Surgery Physician

Niche

1,102 US NPIs in this specialty

Medicare Part D claims

471 22% vs specialty avg

2023 prescription claims

Specialty avg: 607

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

Specialty board-certification context

Estimated specialty board-certified rate — MOHS-Micrographic Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
MOHS-Micrographic Surgery Physician ABMS/AOA estimate

Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

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).

ARNOLD LEE, M.D., PH.D. 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., PH.D.. NPI: 1598988057. 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.

ARNOLD LEE, M.D., PH.D. appears in the CMS NPPES registry as a MOHS-Micrographic Surgery Physician provider holding M.D., PH.D. credentials at 5971 VENICE BLVD, LOS ANGELES, CA, 90034, with a listed phone of (646) 270-1632. NPI 1598988057 was issued on 04/11/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEE 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 471 prescription claims written by this provider, covering 187 Medicare beneficiaries and totaling roughly $184K in drug spend, split 23% brand-name and 77% generic by claim count. 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.

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

5971 VENICE BLVD
LOS ANGELES, CA 90034

Provider Details

NPI 1598988057
Specialty MOHS-Micrographic Surgery Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 04/11/2007

Hospital and facility affiliations

Facilities where ARNOLD LEE, M.D., PH.D. 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
LOS ANGELES, 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).

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 ARNOLD LEE, M.D., PH.D.. To verify ARNOLD LEE, M.D., PH.D.'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 · Typical

ARNOLD LEE, M.D., PH.D. — brand share 23.0%
Specialty average (est.)

23% brand-name claims vs 77% generic, on 471 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.

471
Total Claims
$184K
Total Drug Cost
187
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
526
Total Day Supply
13,948
Brand vs Generic
23% brand / 77% generic
Brand Drug Cost
$172K
Generic Drug Cost
$12K
Antibiotic Claims
29

Patient Demographics

Average Patient Age
76.9 years
Avg HCC Risk Score
1.26
Gender Split
52% female / 48% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Fluorouracil
41
Triamcinolone Acetonide
35
Retin-A
Tretinoin
25
Fluocinonide
22
Ciclopirox
Ciclopirox Olamine
21
Mupirocin
21
Cephalexin
20
Betamethasone Diprop Augmented
Betamethasone/Propylene Glyc
18
Imiquimod
18
Mometasone Furoate
18

* 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 ARNOLD LEE, M.D., PH.D. 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

ARNOLD LEE, M.D., PH.D.'s 471 claims are below 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 LEE.

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

Frequently Asked Questions

What is ARNOLD LEE, M.D., PH.D.'s specialty?
ARNOLD LEE, M.D., PH.D. specializes in MOHS-Micrographic Surgery Physician and practices in LOS ANGELES, California. Credentials: M.D., PH.D..
How much does ARNOLD LEE, M.D., PH.D. prescribe under Medicare Part D?
In 2023, ARNOLD LEE, M.D., PH.D. wrote 471 Medicare Part D claims totaling $184K in drug costs for 187 beneficiaries.
Where is ARNOLD LEE, M.D., PH.D. located?
ARNOLD LEE, M.D., PH.D. is located at 5971 VENICE BLVD, LOS ANGELES, CA, 90034. Phone: (646) 270-1632.
What is ARNOLD LEE, M.D., PH.D.'s NPI number?
ARNOLD LEE, M.D., PH.D.'s National Provider Identifier (NPI) is 1598988057, issued on 04/11/2007.
Does ARNOLD LEE, M.D., PH.D. prescribe more brand-name or generic drugs?
ARNOLD LEE, M.D., PH.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $172K in brand drug costs.
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 ARNOLD LEE, M.D., PH.D. prescribe most often?
Based on 2023 Medicare Part D data, ARNOLD LEE, M.D., PH.D.'s most frequently prescribed drugs include Fluorouracil, Triamcinolone Acetonide, Retin-A. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARNOLD LEE, M.D., PH.D. accept Medicare?
ARNOLD LEE, M.D., PH.D. appears in CMS Medicare data with 471 Part D claims and 187 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARNOLD LEE, M.D., PH.D.'s credentials?
ARNOLD LEE, M.D., PH.D.'s NPI is 1598988057 with credentials M.D., PH.D.. 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.
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