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JOHNASAN M GREGORY M.D.
NPI 1699774869
Internal Medicine - Gastroenterology in Sherman, TX

Active since July 19, 2005PECOS EnrolledAccepts Medicare Assignment
300 N HIGHLAND AVE STE 340, SHERMAN, TX 75092(903) 957-0233(903) 957-0263 Get Directions Write a Review

NPPES record last updated: April 16, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Johnasan M Gregory M.d. NPPES

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

JOHNASAN M GREGORY M.D. (NPI 1699774869) is an individual gastroenterology provider in Sherman, Texas, licensed in Texas (G8150) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1699774869
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameJOHNASAN M GREGORYCredential: M.D.
Location Address300 N HIGHLAND AVE STE 340Sherman, TX 75092-7392
Mailing Address300 N Highland Ave Ste 340Sherman, TX 75092-7392 · (903) 957-0233 · Fax (903) 957-0263
Phone(903) 957-0233
Fax(903) 957-0263
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateJuly 19, 2005
Last NPPES UpdateApril 16, 2012
✔ NPI 1699774869 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in TX · G8150
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedSpecialistTaxonomy 174400000X · License G8150 (TX)
300 N HIGHLAND AVE STE 340, Sherman, TX 75092
Open in Google Maps ↗

Other Identifiers 7

OtherG8150TX · License
Medicare ID-Type Unspecified83X230TX
Medicaid126499603TX
Medicare UPINE04559TX
Medicare PINTXB146501TX
Medicare PINTXB146500TX
Medicare PINTXB146499TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Arkansas Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, Health Advantage 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

Johnasan M Gregory M.d. 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 ID5698742922
PECOS Enrollment IDI20240105003185
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 8

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.

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.
67 services66 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
61 services46 patients
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.
42 services28 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
35 services35 patients
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235
This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.
33 services30 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
27 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75092 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Johnasan Gregory's NPI number?

The NPI number for Johnasan Gregory is 1699774869. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is Johnasan Gregory located?

Johnasan Gregory practices at 300 N Highland Ave Ste 340, Sherman, TX 75092. The listed phone number is (903) 957-0233.

What is Johnasan Gregory's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Johnasan Gregory enrolled in Medicare?

Yes. Johnasan Gregory 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 Johnasan Gregory accept?

Health plans from Arkansas Blue Cross and Blue Shield, Blue Cross and Blue Shield of Texas, Health Advantage and Octave list Johnasan Gregory 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.

When was this NPI record last updated?

The NPPES record for Johnasan Gregory was last updated on April 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.