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Dr. Ryan Christian Guillory , DO

Internal Medicine • Athens, OH

Active NPI 1083153423 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

55 Hospital Dr # 1
Athens, OH 457012302

Call 7405935551 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

55 Hospital Dr # 1

Athens, OH 457012302

Telephone 7405935551
Fax 6145660401
Organization at the Same NPPES Address or Phone
Southern Ohio Emergency Physicians, Llp Facility NPI 1023441631

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Fairfield Healthcare Professionals Inc; Ohio Valley Physicians Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

William Carey University College Of Osteopathic Medicine

Graduation Year

2017

Medicare patients

293 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $79,458 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $61,949 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

418 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$10,700 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $75.86 across 4 records.

By nature of payment

  • Food and Beverage: $75.86 across 4 records.

Reporting-company totals

  • ABBVIE INC.: $44.87 across 2 records.
  • Novo Nordisk Inc: $16.55 across 1 record.
  • Bayer Healthcare Pharmaceuticals Inc.: $14.44 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2017

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Guillory has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Guillory as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Athens and Ohio

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Internal Medicine in Athens, OH (2024, 12 clinicians with data). Median for this group: 776. Middle half: 384 to 1,127.

More Medicare Part B services than 60% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: 574. Middle half: 262 to 1,043.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Athens, OH (2024, 12 clinicians with data). Median for this group: $53,113. Middle half: $39,735 to $68,145.

A higher Medicare-allowed amount than 70% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $50,782. Middle half: $23,884 to $83,638.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Athens, OH (2024, 12 clinicians with data). Median for this group: $33,991. Middle half: $31,226 to $41,643.

A higher Medicare payment amount than 70% of clinicians listed under Internal Medicine in Ohio (2024, 3,145 clinicians with data). Median for this group: $37,953. Middle half: $17,413 to $63,670.

Medicare Part D prescriptions

Fewer Part D prescriptions than 75% of clinicians listed under Internal Medicine in Athens, OH (2024, 13 clinicians with data). Median for this group: 4,698. Middle half: 403 to 8,748.

Close to the middle for clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: 883. Middle half: 119 to 5,445.

Part D drug cost

A lower Part D drug cost than 90% of clinicians listed under Internal Medicine in Athens, OH (2024, 13 clinicians with data). Median for this group: $470,383. Middle half: $131,346 to $527,306.

A lower Part D drug cost than 65% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: $79,160. Middle half: $4,027 to $440,452.

16 active clinicians are listed under Internal Medicine with a practice address in Athens, OH (5,283 in Ohio).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Athens

31.2% of these 16 clinicians have the CMS telehealth indicator.

81.2% of these 16 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $75.86.

Manufacturer Payment Nature Product Type Amount ($)
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $23.85
ABBVIE INC.
Food and Beverage
In-kind items and services
QULIPTA General $21.02
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $16.55
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $14.44

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2020–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
214 109 $115.17 $74.26
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
205 114 $171.28 $111.14
99239 Hospital discharge day management, more than 30 minutes
157 150 $166.05 $106.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
61 61 $307.04 $164.15
99291 Critical care, first 30-74 minutes
45 27 $335.00 $202.55
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
24 20 $135.00 $85.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
22 18 $190.00 $120.93
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
13 11 $25.00 $15.67

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Metoprolol Succinate Metoprolol Succinate 37 1,065 $215.08 22
Pantoprazole Sodium Pantoprazole Sodium 32 944 $245.49 21
Furosemide Furosemide 27 870 $47.07 22
Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav 22 154 $288.46 22
Levofloxacin Levofloxacin 21 127 $84.87 21
Prednisone Prednisone 20 221 $58.73 19
Atorvastatin Calcium Atorvastatin Calcium 20 600 $74.15 14
Diltiazem 24hr Er (Cd) Diltiazem Hcl 18 600 $240.42 —
Tamsulosin Hcl Tamsulosin Hcl 17 510 $96.80 —
Cefdinir Cefdinir 16 87 $71.77 15
Cephalexin Cephalexin 15 86 $56.61 14
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 15 289 $53.00 —
Amiodarone Hcl Amiodarone Hcl 15 482 $182.64 11
Eliquis Apixaban 15 412 $8,532.01 —
Potassium Chloride Potassium Chloride 14 420 $65.87 —
Spironolactone Spironolactone 14 480 $69.56 11
Oxycodone Hcl Oxycodone Hcl 14 58 $62.43 14
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 13 42 $66.26 13
Amlodipine Besylate Amlodipine Besylate 13 450 $25.23 —
Azithromycin Azithromycin 12 118 $68.21 12
Lisinopril Lisinopril 11 448 $22.05 —
Carvedilol Carvedilol 11 298 $44.50 —
Losartan Potassium Losartan Potassium 11 330 $28.29 —

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2021-09-20
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES OH 34.014146

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: State Medical Board of Ohio.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20200715000926

Enrollment State Jurisdiction

OH

PECOS Control ID

5092084087

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Ohio Valley Physicians Inc

55 Hospital Dr, Athens, OH 457012302

Phone: 7405929349

Fairfield Healthcare Professionals Inc

2405 N Columbus St, Lancaster, OH 431308100

Phone: 7406878397

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

6 listed
NPI 1538265434

Doctor of Osteopathic Medicine (D.O.)

Cortney Cahoe , CNP

Nurse Practitioner - Family

NPI 1336573971

Certified Nurse Practitioner

Amber Gokkaya , FNP-C

Nurse Practitioner - Family

NPI 1487104071

Family Nurse Practitioner (Certified)

Katherine Holter , ACNP

Nurse Practitioner - Acute Care

NPI 1093139958
NPI 1699884452

Doctor of Osteopathic Medicine (D.O.)

Dr. Nathan Lowien , DO

Emergency Medicine

NPI 1003065178

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
📍
Updated Practice Location September 20, 2021

Registered at 55 HOSPITAL DR # 1, ATHENS, OH 457012302 (Tel: 7405935551)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 20, 2021

Internal Medicine (license number reported to NPPES: OH 34.014146)

âś…
NPI Profile Active February 17, 2017

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) February 17, 2017

Registered at 1550 SHERIDAN DR, SUITE 203, LANCASTER, OH 431301381 (Tel: 7406878397)

📍
Business Mailing Address (Initial Record) February 17, 2017

Registered at 1550 SHERIDAN DR, SUITE 203, LANCASTER, OH 431301381 (Tel: 7406878397)

👤
Provider Name / Credentials (Initial Record) February 17, 2017

Recorded as RYAN GUILLORY, D.O.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 17, 2017

Internal Medicine (license number reported to NPPES: OH 123456789)

🟢
Initial NPI Registration & Enumeration February 17, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1083153423
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 17, 2017
Last Update: September 20, 2021
Sole Proprietor: No

Other Internal Medicine Providers in Athens

All Internal Medicine Providers in Athens

More public profiles in Ohio

Directory navigation, in NPI number order.

Mailing Address

1550 Sheridan Dr, Suite 203

Lancaster, OH 431301381

Phone: 7406878397

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.