Erica Westbrooks, PA-C
Physician Assistant in Saint Louis, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Erica Westbrooks, PA-C filed 1,352 Medicare Part D claims in 2023 as a Physician Assistant in Saint Louis, Missouri, prescribing 90% generic.
- 1K
- Part D claims, 2023
- 90%
- generic prescribing
- $4.2K
- industry payments (Sunshine Act)
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.
Erica Westbrooks, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,352 Top 21% higher than 79% of 1,370,886 prescribers
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
What does the federal data show about Erica Westbrooks, PA-C?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Missouri
How Physician Assistant compares to other specialties among Missouri providers
Physician Assistant ranks #21 among Missouri's specialties (1.5% of in-state providers)
Each bar is a specialty's share of the Missouri provider total, by primary NUCC taxonomy. The highlighted bar is Physician Assistant; the long tail of smaller specialties is omitted for legibility.
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Physician Assistant. Verify directly:
How MIPS and board certification work
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).
Erica Westbrooks, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 11125 DUNN RD, Saint Louis, MO, 63136, with a listed phone of (314) 355-7111. NPI 1467703975 was issued on 09/24/2012.
Medicare Part D records for calendar year 2023 show 1,352 prescription claims written by this provider, covering 425 Medicare beneficiaries and totaling roughly $415K in drug spend, split 10% brand-name and 90% generic by claim count.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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
Provider Details
| NPI | 1467703975 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 09/24/2012 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Erica Westbrooks, PA-C's current license status, disciplinary history, and board certifications with the Missouri Board of Registration for the Healing Arts in Missouri before relying on this page for a clinical or care decision.
How we sourced this profile
Profile fields combine the CMS NPPES monthly snapshot (provider directory, taxonomy, and address) with calendar-year 2023 Medicare Part D and MIPS public-use files when records are present. NPI 1467703975 is the unique 10-digit identifier CMS uses to link Westbrooks across every Medicare, Medicaid, and HIPAA-covered transaction. Read full methodology →
Hospital and facility affiliations
Facilities where Erica Westbrooks, PA-C 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.
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 Erica Westbrooks, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$4.2K
Largest payer
Arcutis Biotherapeutics, 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.
Brand vs generic prescribing mix · Typical
10% brand-name claims vs 90% generic, on 1,352 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.
Prescribing Breakdown
- 30-Day Fills
- 1,497
- Total Day Supply
- 40,497
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $370K
- Generic Drug Cost
- $46K
- Antibiotic Claims
- 99
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 36, 65-74: 219, 75-84: 134, 85+: 36
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Erica Westbrooks, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketoconazole
Ketoconazole
214 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
211 claims
- Clobetasol Propion…
Clobetasol Propionate
149 claims
- Ciclopirox
Ciclopirox
98 claims
- Doxycycline Hyclate 84
Doxycycline Hyclate
84 claims
- Hydrocortisone 80
Hydrocortisone
80 claims
- Betamethasone Dipr… 50
Betamethasone Dipropionate
50 claims
- Metronidazole 50
Metronidazole
50 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 214 |
| Triamcinolone Acetonide | 211 |
| Clobetasol Propionate | 149 |
| Ciclopirox | 98 |
| Doxycycline Hyclate | 84 |
| Hydrocortisone | 80 |
| Betamethasone Dipropionate | 50 |
| Metronidazole | 50 |
| Tretinoin | 39 |
| Valacyclovir Valacyclovir Hcl | 32 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Erica Westbrooks, PA-C fits within the Physician Assistant landscape nationally.
Erica Westbrooks, PA-C's 1,352 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Westbrooks.
Compare Physician Assistant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
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Data Sources
View source datasets and methodology notes
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.
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