2026 NPPES data Surgical Physician Assistant NPI 1598155202 PA-C
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ELIZABETH MAY, PA-C

Surgical Physician Assistant in HILLSBORO, Oregon. 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
720
Medicare Part D claims · 227 beneficiaries · Surgical Physician Assistant avg: 316
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ELIZABETH MAY, PA-C filed 720 Medicare Part D claims in 2023 as a Surgical Physician Assistant in HILLSBORO, Oregon, prescribing 94% generic.

720
Part D claims, 2023
94%
generic prescribing

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.

ELIZABETH MAY, PA-C's Medicare Part D volume vs every U.S. prescriber

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

720 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 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

What does the federal data show about ELIZABETH MAY, PA-C?

Quality data not reported

NPI registry status

Active

Issued 02/02/2015

NPI 1598155202

Primary specialty

Surgical Physician Assistant

Mid-sized

16,119 US NPIs in this specialty

Medicare Part D claims

720 128% vs specialty avg

2023 prescription claims

Specialty avg: 316

Specialty distribution in Oregon

How Surgical Physician Assistant compares to other specialties among Oregon providers

Oregon providers

Surgical Physician Assistant share within Oregon

1. Surgical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgical Physician Assistant share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Surgical Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Surgical Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Surgical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Surgical Physician Assistant) — 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).

ELIZABETH MAY, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 2875 NORTHWEST STUCKI AVE, HILLSBORO, OR, 97124, with a listed phone of (971) 310-1000. NPI 1598155202 was issued on 02/02/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAY 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 720 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $15K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 33.3%. 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.

Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,119 enrolled providers across 54 states and an average of 316 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

2875 NORTHWEST STUCKI AVE
HILLSBORO, OR 97124

Provider Details

NPI 1598155202
Specialty Surgical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 02/02/2015

Hospital and facility affiliations

Facilities where ELIZABETH MAY, 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.

KAISER FOUNDATION HEALTH PLAN OF THE NORTHWEST
CLACKAMAS, OR

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

Brand vs generic prescribing mix · Generic-heavy

ELIZABETH MAY, PA-C — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 720 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.

720
Total Claims
$15K
Total Drug Cost
227
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
749
Total Day Supply
9,312
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$8K
Generic Drug Cost
$6K
Opioid Claims
240 (33.3% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
0.99
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

What ELIZABETH MAY, PA-C 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
Oxycodone Hcl
185
Ondansetron Odt
Ondansetron
127
Meloxicam
103
Dexamethasone
91
Pregabalin
88
Hydromorphone Hcl
27
Tramadol Hcl
17
Pradaxa
Dabigatran Etexilate Mesylate
16
Enoxaparin Sodium
14
Cefadroxil
11

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

Surgical Physician Assistant Overview

How ELIZABETH MAY, PA-C fits within the Surgical Physician Assistant landscape nationally.

16,119
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider

ELIZABETH MAY, PA-C's 720 claims are above the specialty average of 316.

Nearby Surgical Physician Assistant Providers in Oregon

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

Compare Surgical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELIZABETH MAY, PA-C's specialty?
ELIZABETH MAY, PA-C specializes in Surgical Physician Assistant and practices in HILLSBORO, Oregon. Credentials: PA-C.
How much does ELIZABETH MAY, PA-C prescribe under Medicare Part D?
In 2023, ELIZABETH MAY, PA-C wrote 720 Medicare Part D claims totaling $15K in drug costs for 227 beneficiaries.
Where is ELIZABETH MAY, PA-C located?
ELIZABETH MAY, PA-C is located at 2875 NORTHWEST STUCKI AVE, HILLSBORO, OR, 97124. Phone: (971) 310-1000.
What is ELIZABETH MAY, PA-C's NPI number?
ELIZABETH MAY, PA-C's National Provider Identifier (NPI) is 1598155202, issued on 02/02/2015.
Does ELIZABETH MAY, PA-C prescribe more brand-name or generic drugs?
ELIZABETH MAY, PA-C's prescribing is 6% brand-name and 94% generic drugs by claim count, with $8K in brand drug costs.
Does ELIZABETH MAY, PA-C prescribe opioids?
Yes, ELIZABETH MAY, PA-C had 240 opioid claims in 2023 with an opioid prescribing rate of 33.3%.
How many Surgical Physician Assistant providers are there in the US?
There are 16,119 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does ELIZABETH MAY, PA-C prescribe most often?
Based on 2023 Medicare Part D data, ELIZABETH MAY, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Ondansetron Odt, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELIZABETH MAY, PA-C accept Medicare?
ELIZABETH MAY, PA-C appears in CMS Medicare data with 720 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELIZABETH MAY, PA-C's credentials?
ELIZABETH MAY, PA-C's NPI is 1598155202 with credentials PA-C. 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