2026 NPPES data Physician Assistant NPI 1669781449 PA-C
Verify on CMS →

Deborah Oldfield, PA-C

Physician Assistant in Olympia, Washington. 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
608
Medicare Part D claims · 341 beneficiaries · Physician Assistant avg: 790
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$172.06
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Deborah Oldfield, PA-C filed 608 Medicare Part D claims in 2023 as a Physician Assistant in Olympia, Washington, prescribing 97% generic.

608
Part D claims, 2023
97%
generic prescribing
$172.06
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.

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

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

608 Top 31% higher than 69% 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 Deborah Oldfield, PA-C?

Quality data not reported

NPI registry status

Active

Issued 09/28/2010

NPI 1669781449

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

608 23% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Washington

How Physician Assistant compares to other specialties among Washington providers

Washington providers

Physician Assistant share within Washington

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (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).

Deborah Oldfield, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 149 LILLY RD NE, Olympia, WA, 98506, with a listed phone of (360) 486-6772. NPI 1669781449 was issued on 09/28/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Oldfield 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 608 prescription claims written by this provider, covering 341 Medicare beneficiaries and totaling roughly $11K in drug spend, split 3% brand-name and 97% 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 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

149 LILLY RD NE
Olympia, WA 98506

Provider Details

NPI 1669781449
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 09/28/2010

Hospital and facility affiliations

Facilities where Deborah Oldfield, 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.

Providence Health And Services Washington
Olympia, WA

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 Deborah Oldfield, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$172

Largest payer

UROGEN PHARMA, 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 — Washington WMC 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 ~34K Washington medical licensees in 2023 — they are NOT specific to Deborah Oldfield, PA-C. To verify Deborah Oldfield, PA-C's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Deborah Oldfield, PA-C — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 608 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.

608
Total Claims
$11K
Total Drug Cost
341
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
708
Total Day Supply
11,947
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$3K
Generic Drug Cost
$8K
Antibiotic Claims
237

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.24
Gender Split
67% female / 33% male
Age Distribution
<65: 52, 65-74: 140, 75-84: 113, 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 Deborah Oldfield, 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
Cephalexin
69
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
47
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
35
Azithromycin
32
Prednisone
25
Fluconazole
20
Cyclobenzaprine Hcl
18
Mupirocin
16
Ciprofloxacin Hcl
15
Naproxen
15

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

Physician Assistant Overview

How Deborah Oldfield, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

Deborah Oldfield, PA-C's 608 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Washington

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

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 Washington 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.

Frequently Asked Questions

What is Deborah Oldfield, PA-C's specialty?
Deborah Oldfield, PA-C specializes in Physician Assistant and practices in Olympia, Washington. Credentials: PA-C.
How much does Deborah Oldfield, PA-C prescribe under Medicare Part D?
In 2023, Deborah Oldfield, PA-C wrote 608 Medicare Part D claims totaling $11K in drug costs for 341 beneficiaries.
Where is Deborah Oldfield, PA-C located?
Deborah Oldfield, PA-C is located at 149 LILLY RD NE, Olympia, WA, 98506. Phone: (360) 486-6772.
What is Deborah Oldfield, PA-C's NPI number?
Deborah Oldfield, PA-C's National Provider Identifier (NPI) is 1669781449, issued on 09/28/2010.
Does Deborah Oldfield, PA-C prescribe more brand-name or generic drugs?
Deborah Oldfield, PA-C's prescribing is 3% brand-name and 97% generic drugs by claim count, with $3K in brand drug costs.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Deborah Oldfield, PA-C prescribe most often?
Based on 2023 Medicare Part D data, Deborah Oldfield, PA-C's most frequently prescribed drugs include Cephalexin, Amoxicillin-Clavulanate Potass, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Deborah Oldfield, PA-C accept Medicare?
Deborah Oldfield, PA-C appears in CMS Medicare data with 608 Part D claims and 341 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Deborah Oldfield, PA-C's credentials?
Deborah Oldfield, PA-C's NPI is 1669781449 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