2026 NPPES data Obstetrics & Gynecology Physician NPI 1104816388 MD
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JAMES GUILER, MD

Obstetrics & Gynecology Physician in LEXINGTON, Kentucky. 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
3K
Medicare Part D claims · 491 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Industry payments
$412.37
18 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JAMES GUILER, MD filed 3,273 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in LEXINGTON, Kentucky.

3K
Part D claims, 2023
$412.37
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.

JAMES GUILER, MD's Medicare Part D volume vs every U.S. prescriber

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

3,273 Top 11% higher than 89% 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%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

Board-eligible specialty (heuristic — not verified)

JAMES GUILER, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JAMES GUILER, MD?

Quality data not reported

NPI registry status

Active

Issued 10/27/2005

NPI 1104816388

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

3,273 1728% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Kentucky

How Obstetrics & Gynecology Physician compares to other specialties among Kentucky providers

Kentucky providers

Obstetrics & Gynecology Physician share within Kentucky

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Kentucky

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology Physician) — 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).

JAMES GUILER, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 1720 NICHOLASVILLE RD STE 702, LEXINGTON, KY, 40503, with a listed phone of (859) 264-8811. NPI 1104816388 was issued on 10/27/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUILER 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 3,273 prescription claims written by this provider, covering 491 Medicare beneficiaries and totaling roughly $497K in drug spend, with an opioid prescribing rate of 1.8%. 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

1720 NICHOLASVILLE RD STE 702
LEXINGTON, KY 40503

Provider Details

NPI 1104816388
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 10/27/2005

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 JAMES GUILER, MD. Source: openpaymentsdata.cms.gov.

Total received

$412

Largest payer

Gynesonics, 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.

Medicare Part D Prescribing Data

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

3,273
Total Claims
$497K
Total Drug Cost
491
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,120
Total Day Supply
173,972
Generic Drug Cost
$173K
Opioid Claims
59 (1.8% rate)
Antibiotic Claims
63

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
0.86
Age Distribution
<65: 74, 65-74: 271, 75-84: 130, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What JAMES GUILER, MD 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
Estradiol (Twice Weekly)
Estradiol
809
Dotti
Estradiol
258
Estradiol
221
Alprazolam
190
Oxybutynin Chloride Er
Oxybutynin Chloride
165
Temazepam
154
Myrbetriq
Mirabegron
119
Zolpidem Tartrate
76
Nystatin-Triamcinolone
Nystatin/Triamcinolone Acet
71
Fluconazole
67

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

Obstetrics & Gynecology Physician Overview

How JAMES GUILER, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

JAMES GUILER, MD's 3,273 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Kentucky

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

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES GUILER, MD's specialty?
JAMES GUILER, MD specializes in Obstetrics & Gynecology Physician and practices in LEXINGTON, Kentucky. Credentials: MD.
How much does JAMES GUILER, MD prescribe under Medicare Part D?
In 2023, JAMES GUILER, MD wrote 3,273 Medicare Part D claims totaling $497K in drug costs for 491 beneficiaries.
Where is JAMES GUILER, MD located?
JAMES GUILER, MD is located at 1720 NICHOLASVILLE RD STE 702, LEXINGTON, KY, 40503. Phone: (859) 264-8811.
What is JAMES GUILER, MD's NPI number?
JAMES GUILER, MD's National Provider Identifier (NPI) is 1104816388, issued on 10/27/2005.
Does JAMES GUILER, MD prescribe opioids?
Yes, JAMES GUILER, MD had 59 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does JAMES GUILER, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES GUILER, MD's most frequently prescribed drugs include Estradiol (Twice Weekly), Dotti, Estradiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES GUILER, MD accept Medicare?
JAMES GUILER, MD appears in CMS Medicare data with 3,273 Part D claims and 491 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES GUILER, MD's credentials?
JAMES GUILER, MD's NPI is 1104816388 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

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