2026 NPPES data Medical Physician Assistant NPI 1447365101 PA-C
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THERESA OAKLEY, PA-C

Medical Physician Assistant in QUINCY, Illinois. 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
551
Medicare Part D claims · 70 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

THERESA OAKLEY, PA-C filed 551 Medicare Part D claims in 2023 as a Medical Physician Assistant in QUINCY, Illinois.

551
Part D claims, 2023

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.

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

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

551 Top 34% higher than 66% 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%). This entry sits in this band. 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

What does the federal data show about THERESA OAKLEY, PA-C?

Quality data not reported

NPI registry status

Active

Issued 08/20/2006

NPI 1447365101

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

551 49% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Illinois

How Medical Physician Assistant compares to other specialties among Illinois providers

Illinois providers

Medical Physician Assistant share within Illinois

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

Specialty board-certification context

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

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

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

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

THERESA OAKLEY, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 612 N 11TH ST, QUINCY, IL, 62301, with a listed phone of (217) 224-9484. NPI 1447365101 was issued on 08/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OAKLEY 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 551 prescription claims written by this provider, covering 70 Medicare beneficiaries and totaling roughly $22K in drug spend. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

612 N 11TH ST
QUINCY, IL 62301

Provider Details

NPI 1447365101
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 08/20/2006

Hospital and facility affiliations

Facilities where THERESA OAKLEY, 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.

BOARD OF TRUSTEES OF SOUTHERN ILLINOIS UNIVERSITY
QUINCY, IL

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 — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to THERESA OAKLEY, PA-C. To verify THERESA OAKLEY, PA-C's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

551
Total Claims
$22K
Total Drug Cost
70
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,073
Total Day Supply
30,718
Generic Drug Cost
$8K
Antibiotic Claims
17

Patient Demographics

Average Patient Age
62.9 years
Avg HCC Risk Score
0.98
Gender Split
70% female / 30% male
Age Distribution
<65: 27, 65-74: 30, 75-84: 13, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

What THERESA OAKLEY, 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
Atorvastatin Calcium
33
Lisinopril
31
Lisinopril-Hydrochlorothiazide
Lisinopril/Hydrochlorothiazide
29
Amlodipine Besylate
23
Simvastatin
23
Cyclobenzaprine Hcl
19
Gabapentin
18
Hydrochlorothiazide
18
Sertraline Hcl
18
Metformin Hcl
16

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

Medical Physician Assistant Overview

How THERESA OAKLEY, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

THERESA OAKLEY, PA-C's 551 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Illinois

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

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

Frequently Asked Questions

What is THERESA OAKLEY, PA-C's specialty?
THERESA OAKLEY, PA-C specializes in Medical Physician Assistant and practices in QUINCY, Illinois. Credentials: PA-C.
How much does THERESA OAKLEY, PA-C prescribe under Medicare Part D?
In 2023, THERESA OAKLEY, PA-C wrote 551 Medicare Part D claims totaling $22K in drug costs for 70 beneficiaries.
Where is THERESA OAKLEY, PA-C located?
THERESA OAKLEY, PA-C is located at 612 N 11TH ST, QUINCY, IL, 62301. Phone: (217) 224-9484.
What is THERESA OAKLEY, PA-C's NPI number?
THERESA OAKLEY, PA-C's National Provider Identifier (NPI) is 1447365101, issued on 08/20/2006.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does THERESA OAKLEY, PA-C prescribe most often?
Based on 2023 Medicare Part D data, THERESA OAKLEY, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Lisinopril-Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THERESA OAKLEY, PA-C accept Medicare?
THERESA OAKLEY, PA-C appears in CMS Medicare data with 551 Part D claims and 70 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THERESA OAKLEY, PA-C's credentials?
THERESA OAKLEY, PA-C's NPI is 1447365101 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