2026 NPPES data Clinical & Laboratory Dermatological Immunology Physician NPI 1356477087 MD
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APRIL ARMSTRONG, MD

Clinical & Laboratory Dermatological Immunology 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
379
Medicare Part D claims · 89 beneficiaries · Clinical & Laboratory Dermatological Immunology Physician avg: 755
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$404.5K
235 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

APRIL ARMSTRONG, MD filed 379 Medicare Part D claims in 2023 as a Clinical & Laboratory Dermatological Immunology Physician in LOS ANGELES, California, prescribing 59% generic.

379
Part D claims, 2023
59%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

APRIL ARMSTRONG, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

379 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

APRIL ARMSTRONG, MD 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).

What does the federal data show about APRIL ARMSTRONG, MD?

Quality data not reported

NPI registry status

Active

Issued 02/26/2007

NPI 1356477087

Primary specialty

Clinical & Laboratory Dermatological Immunology Physician

Rare

63 US NPIs in this specialty

Medicare Part D claims

379 50% vs specialty avg

2023 prescription claims

Specialty avg: 755

Specialty distribution in California

How Clinical & Laboratory Dermatological Immunology Physician compares to other specialties among California providers

California providers

Clinical & Laboratory Dermatological Immunology Physician share within California

1. Clinical & Laboratory Dermatological Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical & Laboratory Dermatological Immunology Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Clinical & Laboratory Dermatological Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Clinical & Laboratory Dermatological Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Clinical & Laboratory Dermatological Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Clinical & Laboratory Dermatological Immunology 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).

APRIL ARMSTRONG, MD appears in the CMS NPPES registry as a Clinical & Laboratory Dermatological Immunology Physician provider holding MD credentials at 200 UCLA MEDICAL PLZ STE 450, LOS ANGELES, CA, 90095, with a listed phone of (310) 825-6911. NPI 1356477087 was issued on 02/26/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARMSTRONG 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 379 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $964K in drug spend, split 41% brand-name and 59% 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.

Clinical & Laboratory Dermatological Immunology Physician is a narrow specialty nationwide, with 63 enrolled providers across 29 states and an average of 755 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

200 UCLA MEDICAL PLZ STE 450
LOS ANGELES, CA 90095

Provider Details

NPI 1356477087
Specialty Clinical & Laboratory Dermatological Immunology Physician
Credentials MD
Gender Female
NPI Issued 02/26/2007

Hospital and facility affiliations

Facilities where APRIL ARMSTRONG, MD 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.

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
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).

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 APRIL ARMSTRONG, MD. Source: openpaymentsdata.cms.gov.

Total received

$404.5K

Largest payer

E.R. Squibb & Sons, L.L.C.

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 APRIL ARMSTRONG, MD. To verify APRIL ARMSTRONG, MD'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 · Above average

APRIL ARMSTRONG, MD — brand share 41.0%
Specialty average (est.)

41% brand-name claims vs 59% generic, on 379 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.

379
Total Claims
$964K
Total Drug Cost
89
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
440
Total Day Supply
12,137
Brand vs Generic
41% brand / 59% generic
Brand Drug Cost
$955K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
1.47
Gender Split
54% female / 46% male
Age Distribution
<65: 11, 65-74: 44, 75-84: 23, 85+: 11

Top Prescribed Drugs (Medicare Part D)

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

What APRIL ARMSTRONG, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Ketoconazole
52
Clobetasol Propionate
50
Dupixent Pen
Dupilumab
27
Sotyktu
Deucravacitinib
27
Dupixent Syringe
Dupilumab
25
Hydrocortisone
25
Triamcinolone Acetonide
24
Otezla
Apremilast
15
Cosentyx Sensoready (2 Pens)
Secukinumab
12
Adbry
Tralokinumab-Ldrm
11

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

Clinical & Laboratory Dermatological Immunology Physician Overview

How APRIL ARMSTRONG, MD fits within the Clinical & Laboratory Dermatological Immunology Physician landscape nationally.

63
Clinical & Laboratory Dermatological Immunology Physician Providers in US
29
States with Clinical & Laboratory Dermatological Immunology Physician
755
Avg Claims per Provider

APRIL ARMSTRONG, MD's 379 claims are below the specialty average of 755.

Nearby Clinical & Laboratory Dermatological Immunology Physician Providers in California

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

Compare Clinical & Laboratory Dermatological Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is APRIL ARMSTRONG, MD's specialty?
APRIL ARMSTRONG, MD specializes in Clinical & Laboratory Dermatological Immunology Physician and practices in LOS ANGELES, California. Credentials: MD.
How much does APRIL ARMSTRONG, MD prescribe under Medicare Part D?
In 2023, APRIL ARMSTRONG, MD wrote 379 Medicare Part D claims totaling $964K in drug costs for 89 beneficiaries.
Where is APRIL ARMSTRONG, MD located?
APRIL ARMSTRONG, MD is located at 200 UCLA MEDICAL PLZ STE 450, LOS ANGELES, CA, 90095. Phone: (310) 825-6911.
What is APRIL ARMSTRONG, MD's NPI number?
APRIL ARMSTRONG, MD's National Provider Identifier (NPI) is 1356477087, issued on 02/26/2007.
Does APRIL ARMSTRONG, MD prescribe more brand-name or generic drugs?
APRIL ARMSTRONG, MD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $955K in brand drug costs.
How many Clinical & Laboratory Dermatological Immunology Physician providers are there in the US?
There are 63 Clinical & Laboratory Dermatological Immunology Physician providers across 29 states in the US. The average Clinical & Laboratory Dermatological Immunology Physician provider writes 755 Medicare Part D claims per year.
What drugs does APRIL ARMSTRONG, MD prescribe most often?
Based on 2023 Medicare Part D data, APRIL ARMSTRONG, MD's most frequently prescribed drugs include Ketoconazole, Clobetasol Propionate, Dupixent Pen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does APRIL ARMSTRONG, MD accept Medicare?
APRIL ARMSTRONG, MD appears in CMS Medicare data with 379 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify APRIL ARMSTRONG, MD's credentials?
APRIL ARMSTRONG, MD's NPI is 1356477087 with credentials MD. 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