2026 NPPES data Gerontology Nurse Practitioner NPI 1528540341 MSN, AGNP-C
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KAITLYN CHAPIN, MSN, AGNP-C

Gerontology Nurse Practitioner in NASHVILLE, Tennessee. 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 · 178 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.1279/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$903.31
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KAITLYN CHAPIN, MSN, AGNP-C is a Gerontology Nurse Practitioner ([object Object]) practicing in NASHVILLE, Tennessee with a Medicare Part D prescribing footprint of 1K claims across 178 beneficiaries — 12% brand-name prescribing . Their CMS MIPS Final Score of 97.1279/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $903.31 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KAITLYN CHAPIN, MSN, AGNP-C reported a CMS MIPS final score of 97.1279 out of 100, above the 83.1 national average, and filed 1,155 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

KAITLYN CHAPIN, MSN, AGNP-C at a glance

High performer (top quartile)

NPI registry status

Active

Issued 08/29/2018

NPI 1528540341

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

1,155 10% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

MIPS final score

97.1279/100 14.027900000000002% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Tennessee

How Gerontology Nurse Practitioner compares to other specialties among Tennessee providers

Tennessee providers

Gerontology Nurse Practitioner share within Tennessee

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

Medicare quality performance — MIPS

KAITLYN CHAPIN, MSN, AGNP-C's 2023 MIPS final score plotted against the Gerontology Nurse Practitioner national average

High performer (top quartile)
MIPS Final Score
97.1279/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gerontology Nurse Practitioner) — 97.1279/100 vs national avg 83.1

0%100%National avg83%97.1%
MIPS final score (Gerontology Nurse Practitioner) — 97.1279/100 vs national avg 83.1

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).

KAITLYN CHAPIN, MSN, AGNP-C is a Gerontology Nurse Practitioner provider practicing in NASHVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MSN, AGNP-C. NPI: 1528540341. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KAITLYN CHAPIN, MSN, AGNP-C appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding MSN, AGNP-C credentials at 1313 21ST AVE S, NASHVILLE, TN, 37232, with a listed phone of (615) 875-1448. NPI 1528540341 was issued on 08/29/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAPIN 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 1,155 prescription claims written by this provider, covering 178 Medicare beneficiaries and totaling roughly $401K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.0%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.1279/100 for the 2023 performance year (Quality 85.6458), compared with the national average of 83.1.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

1313 21ST AVE S
NASHVILLE, TN 37232

Provider Details

NPI 1528540341
Specialty Gerontology Nurse Practitioner
Credentials MSN, AGNP-C
Gender Female
NPI Issued 08/29/2018

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.1279
Final Score
Avg: 83.1
85.6458
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where KAITLYN CHAPIN, MSN, AGNP-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.

VANDERBILT UNIVERSITY MEDICAL CENTER
★★★★★ 5/5
NASHVILLE, TN
Acute Care Hospitals
CMS CCN: 440039

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 KAITLYN CHAPIN, MSN, AGNP-C. Source: openpaymentsdata.cms.gov.

Total received

$903

Largest payer

Zambon USA Ltd.

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

KAITLYN CHAPIN, MSN, AGNP-C — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 1,155 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.

1,155
Total Claims
$401K
Total Drug Cost
178
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,182
Total Day Supply
61,811
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$313K
Generic Drug Cost
$87K
Opioid Claims
11 (1.0% rate)
Antibiotic Claims
161

Patient Demographics

Average Patient Age
65.0 years
Avg HCC Risk Score
3.56
Gender Split
49% female / 51% male
Age Distribution
<65: 62, 65-74: 103, 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.

Drug Claims
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
81
Prednisone
69
Famotidine
56
Tacrolimus
52
Azithromycin
50
Gabapentin
44
Trazodone Hcl
37
Rosuvastatin Calcium
35
Omeprazole
29
Valganciclovir Hcl
27

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

Gerontology Nurse Practitioner Overview

How KAITLYN CHAPIN, MSN, AGNP-C fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

KAITLYN CHAPIN, MSN, AGNP-C's 1,155 claims are below the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Tennessee

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

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

Frequently Asked Questions

What is KAITLYN CHAPIN, MSN, AGNP-C's specialty?
KAITLYN CHAPIN, MSN, AGNP-C specializes in Gerontology Nurse Practitioner and practices in NASHVILLE, Tennessee. Credentials: MSN, AGNP-C.
How much does KAITLYN CHAPIN, MSN, AGNP-C prescribe under Medicare Part D?
In 2023, KAITLYN CHAPIN, MSN, AGNP-C wrote 1,155 Medicare Part D claims totaling $401K in drug costs for 178 beneficiaries.
What is KAITLYN CHAPIN, MSN, AGNP-C's Medicare quality score?
KAITLYN CHAPIN, MSN, AGNP-C has a CMS MIPS Final Score of 97.1279/100 (Quality: 85.6458). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KAITLYN CHAPIN, MSN, AGNP-C located?
KAITLYN CHAPIN, MSN, AGNP-C is located at 1313 21ST AVE S, NASHVILLE, TN, 37232. Phone: (615) 875-1448.
What is KAITLYN CHAPIN, MSN, AGNP-C's NPI number?
KAITLYN CHAPIN, MSN, AGNP-C's National Provider Identifier (NPI) is 1528540341, issued on 08/29/2018.
Does KAITLYN CHAPIN, MSN, AGNP-C prescribe more brand-name or generic drugs?
KAITLYN CHAPIN, MSN, AGNP-C's prescribing is 12% brand-name and 88% generic drugs by claim count, with $313K in brand drug costs.
Does KAITLYN CHAPIN, MSN, AGNP-C prescribe opioids?
Yes, KAITLYN CHAPIN, MSN, AGNP-C had 11 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does KAITLYN CHAPIN, MSN, AGNP-C prescribe most often?
Based on 2023 Medicare Part D data, KAITLYN CHAPIN, MSN, AGNP-C's most frequently prescribed drugs include Sulfamethoxazole-Trimethoprim, Prednisone, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KAITLYN CHAPIN, MSN, AGNP-C accept Medicare?
KAITLYN CHAPIN, MSN, AGNP-C appears in CMS Medicare data with 1,155 Part D claims and 178 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAITLYN CHAPIN, MSN, AGNP-C's credentials?
KAITLYN CHAPIN, MSN, AGNP-C's NPI is 1528540341 with credentials MSN, AGNP-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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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