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DR. GREGORY R. SEMON D.O.
NPI 1134366149
Surgery in Dayton, OH

Active since January 13, 2009PECOS EnrolledAccepts Medicare Assignment
77.04/100
CMS Quality Rating
30 E APPLE ST STE 6258, DAYTON, OH 45409(937) 208-5055 Get Directions Write a Review

NPPES record last updated: August 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gregory R. Semon D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY R. SEMON D.O. (NPI 1134366149) is an individual surgery provider in Dayton, Ohio, licensed in Ohio (34.011898) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS, is affiliated with Wilson Memorial Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1134366149
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. GREGORY R. SEMONCredential: D.O.
Location Address30 E APPLE ST STE 6258Dayton, OH 45409-2939
Mailing Address30 E Apple St Ste 6258Dayton, OH 45409-2939 · (937) 208-5055
Phone(937) 208-5055
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateJanuary 13, 2009
Last NPPES UpdateAugust 20, 2025
NPPES CertifiedAugust 20, 2025
✔ NPI 1134366149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in OH · 34.011898
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 34.011898 (OH)
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License 34.011898 (OH)
30 E APPLE ST STE 6258, Dayton, OH 45409
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory R. Semon D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709025703
PECOS Enrollment IDI20151020002220
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
124 services58 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
65 services48 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
59 services59 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
36 services16 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
23 services23 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
14 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wilson Memorial Hospital

Acute Care Hospitals · Sidney, OH
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360013
Location915 West Michigan StreetSidney, OH 45365 · Shelby County
Emergency services Birthing friendly

Miami Valley Hospital

Acute Care Hospitals · Dayton, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360051
LocationOne Wyoming StreetDayton, OH 45409 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45409 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$68.07 typical visit price
range $17.10 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.04/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality67.82
Promoting Interoperability100
Improvement Activities40
Cost48.67

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. NGA TRAN DO
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
EVAN BRANDENBURG
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
AUSTIN RAY NELSON MD
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-2951
NICHOLAS AARON BURPEE MD
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
AKMAL SALAM
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
JASON CHRISTOPHER PRADARELLI MD, MS
Surgery
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
DR. CHEYENNE NICOLE WONG DO
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 208-8000
LEE PEARSON GORE
Student in an Organized Health Care Education/Training Program
30 E APPLE ST STE 6258
DAYTON, OH 45409
Montgomery County (937) 775-2934

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Semon's NPI number?

The NPI number for Gregory Semon is 1134366149. It was assigned to this individual provider in the NPPES registry on January 13, 2009.

Where is Gregory Semon located?

Gregory Semon practices at 30 E Apple St Ste 6258, Dayton, OH 45409. The listed phone number is (937) 208-5055.

What is Gregory Semon's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Gregory Semon enrolled in Medicare?

Yes. Gregory Semon is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Semon accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, CareSource and Molina Healthcare list Gregory Semon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregory Semon affiliated with any hospitals?

According to CMS data, Gregory Semon is affiliated with Wilson Memorial Hospital and Miami Valley Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Semon was last updated on August 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.