2026 NPPES data Physician Assistant NPI 1619176526 PA
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Tressa Walkington, PA

Physician Assistant in Lansing, Michigan. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 149,975 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.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
444
Medicare Part D claims · 137 beneficiaries · Physician Assistant avg: 790
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Tressa Walkington, PA filed 444 Medicare Part D claims in 2023 as a Physician Assistant in Lansing, Michigan.

444
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.

Tressa Walkington, PA's Medicare Part D volume vs every U.S. prescriber

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

444 Top 38% higher than 62% 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 Tressa Walkington, PA?

Quality data not reported

NPI registry status

Active

Issued 07/12/2007

NPI 1619176526

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

444 44% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Michigan

How Physician Assistant compares to other specialties among Michigan providers

Michigan providers

Largest specialties in Michigan (% of in-state providers)

Behavior Technician — 21.4%Behavior Technician21.4%Clinical Social Worker — 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program — 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist — 3.4%Physical Therapist3.4%Social Worker — 3.4%Social Worker3.4%Pharmacist — 3%Pharmacist3%Physician Assistant — 2.3%Physician Assistant2.3%
Largest specialties in Michigan (% of in-state providers)

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).

Tressa Walkington, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 1215 E MICHIGAN AVE, Lansing, MI, 48912, with a listed phone of (517) 337-0957. NPI 1619176526 was issued on 07/12/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Walkington 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 444 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $14K in drug spend, with an opioid prescribing rate of 39.6%. 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

1215 E MICHIGAN AVE
Lansing, MI 48912

Provider Details

NPI 1619176526
Specialty Physician Assistant
Credentials PA
Gender Female
NPI Issued 07/12/2007

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to Tressa Walkington, PA. To verify Tressa Walkington, PA's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan 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.

444
Total Claims
$14K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
446
Total Day Supply
3,951
Generic Drug Cost
$4K
Opioid Claims
176 (39.6% rate)
Antibiotic Claims
38

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.22
Gender Split
49% female / 51% male

Top Prescribed Drugs (Medicare Part D)

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

What Tressa Walkington, PA 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
103
Ondansetron Odt
Ondansetron
93
Tramadol Hcl
57
Meloxicam
51
Methocarbamol
35
Eliquis
Apixaban
26
Cephalexin
23
Celecoxib
16
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
14

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

Physician Assistant Overview

How Tressa Walkington, PA fits within the Physician Assistant landscape nationally.

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

Tressa Walkington, PA's 444 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Michigan

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

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 Michigan 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 Tressa Walkington, PA's specialty?
Tressa Walkington, PA specializes in Physician Assistant and practices in Lansing, Michigan. Credentials: PA.
How much does Tressa Walkington, PA prescribe under Medicare Part D?
In 2023, Tressa Walkington, PA wrote 444 Medicare Part D claims totaling $14K in drug costs for 137 beneficiaries.
Where is Tressa Walkington, PA located?
Tressa Walkington, PA is located at 1215 E MICHIGAN AVE, Lansing, MI, 48912. Phone: (517) 337-0957.
What is Tressa Walkington, PA's NPI number?
Tressa Walkington, PA's National Provider Identifier (NPI) is 1619176526, issued on 07/12/2007.
Does Tressa Walkington, PA prescribe opioids?
Yes, Tressa Walkington, PA had 176 opioid claims in 2023 with an opioid prescribing rate of 39.6%.
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 Tressa Walkington, PA prescribe most often?
Based on 2023 Medicare Part D data, Tressa Walkington, PA's most frequently prescribed drugs include Oxycodone Hcl, Ondansetron Odt, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tressa Walkington, PA accept Medicare?
Tressa Walkington, PA appears in CMS Medicare data with 444 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tressa Walkington, PA's credentials?
Tressa Walkington, PA's NPI is 1619176526 with credentials PA. 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

Compiled from official public sources by the PlainDoctor editorial team.