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2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1295764637 MD
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Nancy Stiles, MD

Geriatric Medicine (Internal Medicine) Physician in Lexington, Kentucky.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,215 in Geriatric Medicine (Internal Medicine) Physician, 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
29
Medicare Part D claims · 18 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
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Compiled from official public sources by the editorial process.

What the federal data shows

Nancy Stiles, MD reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 29 Medicare Part D claims in 2024.

100/100
MIPS score · +17 vs avg
29
Part D claims, 2024
Likely
board-certified (heuristic)
≥92nd
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Nancy Stiles, MD

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1295764637), first enumerated 06/30/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 29 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Stiles with other Geriatric Medicine (Internal Medicine) Physician providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in Kentucky

Other specialties in Lexington: Student in an Organized Health Care Education/Training Program (1,446) · Pharmacist (637) · Clinical Social Worker (618) · Family Nurse Practitioner (536)

CMS NPPES provider registry desk

NPI 1295764637 · Geriatric Medicine (Internal Medicine) Physician

NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-ELITE · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1295764637
  • ENUM-LEGACY 2006
  • TAX-NARROW 4,215
  • MIPS-ELITE 100/100
  • RX-TRACE 29
  • BOOK-THIN 21 in Kentucky
  • PHOTO-FINISH Shruti Anand, MD · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Nancy Stiles, MD's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Nancy Stiles, MD sits

This provider among geriatric medicine (internal medicine) physician peers

Across the 686 geriatric medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Nancy Stiles, MD writes more Part D claims than 4% of them and scores higher on MIPS quality than 94% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 75Nancy Stiles, MD, Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 94
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one geriatric medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Nancy Stiles, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Nancy Stiles, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Nancy Stiles, MD?

High performer (top quartile)

NPI registry status

Active

Issued 06/30/2006

NPI 1295764637

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,215 US NPIs in this specialty

Medicare Part D claims

29 99% vs specialty avg

2024 prescription claims

Specialty avg: 4,420

MIPS final score

100/100 16.5 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Kentucky

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Kentucky providers

Kentucky providers
Family Nurse Practitioner5.8%Student in an Organized Heal…5.2%Pharmacist4.8%Mental Health Counselor4.6%Clinical Social Worker4.2%Physical Therapist3.6%Geriatric Medicine (Internal…0%
Largest specialties in Kentucky (% of in-state providers)

Medicare quality performance, MIPS

Nancy Stiles, MD's 2023 MIPS final score plotted against the Geriatric Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%99%
MIPS final score (Geriatric Medicine (Internal Medicine) Physician) - 100/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

740 SOUTH LIMESTONE
Lexington, KY 40536
(859) 257-4888

Provider Details

NPI 1295764637
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Female
NPI Issued 06/30/2006

CMS Quality Score (MIPS)

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

100
Final Score
Measured-score avg: 83.5
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

29
Total Claims
$2K
Total Drug Cost
18
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
33
Total Day Supply
544
Generic Drug Cost
$131
Opioid Claims
12 (41.4% rate)

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
2.50
More Geriatric Medicine (Internal Medicine) Physician in KY → All providers in Kentucky → Compare specialties →

Geriatric Medicine (Internal Medicine) Physician Overview

How Nancy Stiles, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,215
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,420
Avg Claims per Provider

Nancy Stiles, MD's 29 claims are below the specialty average of 4,420.

Nationwide Geriatric Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Stiles, both outside Kentucky so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (100 here).

Shruti Anand 100 MI Michelle Barton 100 MI Sylvie Bastadjian-Yessayan 100 NC Iris Boettcher 100 MI

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Kimberly Dixon Chicago, IL Habeeba Moiduddin Hines, IL Robert Moon Chula Vista, CA Ellen Schiaffino-Purvis Tualatin, OR

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Kentucky

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

One of 21 Geriatric Medicine (Internal Medicine) Physician providers enrolled in Kentucky, 11 are shown on this page.

Dr. Patricia Donnelly
M.D.
Louisville, KY
Dr. Christian Furman
MD
Louisville, KY
Dr. Subir Ghosh
M.D.
Jackson, KY
Dr. Rangaraj Gopalraj
M.B.B.S., M. D.
Louisville, KY
Dr. Nityanand Gupta
MD
Owensboro, KY

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Nancy Stiles, MD's specialty? ▼
Nancy Stiles, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in Lexington, Kentucky. Credentials: MD.
How much does Nancy Stiles, MD prescribe under Medicare Part D? ▼
In 2024, Nancy Stiles, MD wrote 29 Medicare Part D claims totaling $2K in drug costs for 18 beneficiaries.
What is Nancy Stiles, MD's Medicare quality score? ▼
Nancy Stiles, MD has a CMS MIPS Final Score of 100/100. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Nancy Stiles, MD located? ▼
Nancy Stiles, MD is located at 740 SOUTH LIMESTONE, Lexington, KY, 40536. Phone: (859) 257-4888.
What is Nancy Stiles, MD's NPI number? ▼
Nancy Stiles, MD's National Provider Identifier (NPI) is 1295764637, issued on 06/30/2006.
Does Nancy Stiles, MD prescribe opioids? ▼
Yes, Nancy Stiles, MD had 12 opioid claims in 2024 with an opioid prescribing rate of 41.4%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 4,215 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,420 Medicare Part D claims per year.
Does Nancy Stiles, MD accept Medicare? ▼
Nancy Stiles, MD appears in CMS Medicare data with 29 Part D claims and 18 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nancy Stiles, MD's credentials? ▼
Nancy Stiles, MD's NPI is 1295764637 with credentials MD. 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

View source datasets and methodology notes
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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.