2026 NPPES data Nurse Practitioner NPI 1770139586
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TAMMY WOLVERTON

Nurse Practitioner in ANDERSON, Indiana. 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
1K
Medicare Part D claims · 94 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$225.43
12 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

TAMMY WOLVERTON filed 1,182 Medicare Part D claims in 2023 as a Nurse Practitioner in ANDERSON, Indiana, prescribing 86% generic.

1K
Part D claims, 2023
86%
generic prescribing
$225.43
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.

TAMMY WOLVERTON's Medicare Part D volume vs every U.S. prescriber

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

1,182 Top 23% higher than 77% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 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 TAMMY WOLVERTON?

Quality data not reported

NPI registry status

Active

Issued 08/16/2019

NPI 1770139586

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

1,182 9% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Indiana

How Nurse Practitioner compares to other specialties among Indiana providers

Indiana providers

Nurse Practitioner share within Indiana

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

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

TAMMY WOLVERTON appears in the CMS NPPES registry as a Nurse Practitioner provider at 2210 JACKSON ST, ANDERSON, IN, 46016, with a listed phone of (765) 646-8444. NPI 1770139586 was issued on 08/16/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WOLVERTON 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 1,182 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $180K in drug spend, split 14% brand-name and 86% 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

2210 JACKSON ST
ANDERSON, IN 46016

Provider Details

NPI 1770139586
Specialty Nurse Practitioner
Gender Female
NPI Issued 08/16/2019

Hospital and facility affiliations

Facilities where TAMMY WOLVERTON 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.

ST VINCENT ANDERSON REGIONAL HOSPITAL INC
ANDERSON, IN

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 TAMMY WOLVERTON. Source: openpaymentsdata.cms.gov.

Total received

$225

Largest payer

Otsuka America Pharmaceutical, 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

TAMMY WOLVERTON — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 1,182 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.

1,182
Total Claims
$180K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,466
Total Day Supply
42,649
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$140K
Generic Drug Cost
$40K

Patient Demographics

Average Patient Age
57.3 years
Avg HCC Risk Score
1.70
Gender Split
66% female / 34% male
Age Distribution
<65: 61, 65-74: 30, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What TAMMY WOLVERTON 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
Trazodone Hcl
107
Hydroxyzine Hcl
63
Buspirone Hcl
62
Duloxetine Hcl
57
Aripiprazole
53
Bupropion Xl
Bupropion Hcl
52
Quetiapine Fumarate
52
Trintellix
Vortioxetine Hydrobromide
45
Mirtazapine
44
Atomoxetine Hcl
38

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

Nurse Practitioner Overview

How TAMMY WOLVERTON fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

TAMMY WOLVERTON's 1,182 claims are above the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Indiana

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

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is TAMMY WOLVERTON's specialty?
TAMMY WOLVERTON specializes in Nurse Practitioner and practices in ANDERSON, Indiana.
How much does TAMMY WOLVERTON prescribe under Medicare Part D?
In 2023, TAMMY WOLVERTON wrote 1,182 Medicare Part D claims totaling $180K in drug costs for 94 beneficiaries.
Where is TAMMY WOLVERTON located?
TAMMY WOLVERTON is located at 2210 JACKSON ST, ANDERSON, IN, 46016. Phone: (765) 646-8444.
What is TAMMY WOLVERTON's NPI number?
TAMMY WOLVERTON's National Provider Identifier (NPI) is 1770139586, issued on 08/16/2019.
Does TAMMY WOLVERTON prescribe more brand-name or generic drugs?
TAMMY WOLVERTON's prescribing is 14% brand-name and 86% generic drugs by claim count, with $140K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does TAMMY WOLVERTON prescribe most often?
Based on 2023 Medicare Part D data, TAMMY WOLVERTON's most frequently prescribed drugs include Trazodone Hcl, Hydroxyzine Hcl, Buspirone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TAMMY WOLVERTON accept Medicare?
TAMMY WOLVERTON appears in CMS Medicare data with 1,182 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TAMMY WOLVERTON's credentials?
TAMMY WOLVERTON's NPI is 1770139586. 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