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DR. GARY D GRAY MD
NPI 1497729826
Internal Medicine in O Fallon, MO

Active since February 14, 2006PECOS EnrolledAccepts Medicare Assignment
5551 WINGHAVEN BLVD, STE 290, O FALLON, MO 63368(636) 695-2575(314) 590-5938 Get Directions Write a Review

NPPES record last updated: December 2, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gary D Gray Md NPPES

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

DR. GARY D GRAY MD (NPI 1497729826) is an individual internal medicine provider in O Fallon, Missouri, licensed in Missouri (2001028980) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Saint Louis University School Of Medicine (1999).

NPPES Registry Identity

NPI1497729826
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GARY D GRAYCredential: MD
Location Address5551 WINGHAVEN BLVD, STE 290O Fallon, MO 63368-3617
Mailing Address5551 Winghaven Blvd, Ste 290O Fallon, MO 63368-3617 · (636) 695-2575 · Fax (314) 590-5938
Phone(636) 695-2575
Fax(314) 590-5938
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 1999
Enumeration DateFebruary 14, 2006
Last NPPES UpdateDecember 2, 2014
✔ NPI 1497729826 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2001028980
Definition
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.
5551 WINGHAVEN BLVD, O Fallon, MO 63368
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Other Identifiers 2

Medicare PINMA3979006MO
Medicare UPINH60915

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan 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. Gary D Gray Md 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 ID5294832390
PECOS Enrollment IDI20070524000580
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 9

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.

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
228 services228 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
166 services125 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
127 services91 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
52 services52 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
51 services51 patients
Transitional care management services for problem of at least moderate complexity 99495
Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
29 services26 patients

Hospital Affiliations CMS Care Compare 3

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260179
Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County
Emergency services Birthing friendly

Ssm St Joseph Hospital West

Acute Care Hospitals · Lake Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260200
Location100 Medical PlazaLake Saint Louis, MO 63367 · St. Charles County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63368 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

Referred Medical Equipment & Supplies CMS DME claims 10

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers39 claims101 services$5.83 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers14 claims18 services$1.01 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
5 suppliers18 claims18 services$32.76 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
2 suppliers11 claims64 services$12.32 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
4 suppliers23 claims23 services$47.61 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers18 claims18 services$15.72 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 17

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

FOREFRONT DERMATOLOGY, S.C.
Dermatology
5551 WINGHAVEN BLVD, SUITE 210
O FALLON, MO 63368
St. Charles County (920) 663-9016
DR. VAN A HARGRAVES MD
Family Medicine
5551 WINGHAVEN BLVD, SUITE 142
O FALLON, MO 63368
St. Charles County (636) 695-2510
DR. PHANN D VU D.P.M.
Podiatrist
5551 WINGHAVEN BLVD, STE 280
O FALLON, MO 63368
St. Charles County (636) 695-4343
LORI PAYNE
Nurse Practitioner (Pediatrics)
5551 WINGHAVEN BLVD, SUITE 240
O FALLON, MO 63368
St. Charles County (636) 561-5561
JENNA A SANDERS ANP-C
Nurse Practitioner (Adult Health)
5551 WINGHAVEN BLVD, STE 290
O FALLON, MO 63368
St. Charles County (636) 695-2575
ARDIS K ALLISON DO
Pediatrics
5551 WINGHAVEN BLVD, SUITE 240
O'FALLON, MO 63368
St. Charles County (636) 561-5561
ALEXANDER M BOLLIS M.D.
Internal Medicine (Cardiovascular Disease)
5551 WINGHAVEN BLVD, SUITE 132
O FALLON, MO 63368
St. Charles County (636) 695-2514
WINGHAVEN PEDIATRICS LLC
Pediatrics
5551 WINGHAVEN BLVD
O FALLON, MO 63368
St. Charles County (636) 561-5561

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 Gary Gray's NPI number?

The NPI number for Gary Gray is 1497729826. It was assigned to this individual provider in the NPPES registry on February 14, 2006.

Where is Gary Gray located?

Gary Gray practices at 5551 Winghaven Blvd Ste 290, O Fallon, MO 63368. The listed phone number is (636) 695-2575.

What is Gary Gray's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gary Gray enrolled in Medicare?

Yes. Gary Gray 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 Gary Gray accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Gary Gray 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 Gary Gray affiliated with any hospitals?

According to CMS data, Gary Gray is affiliated with Mercy Hospital St Louis, St Lukes Hospital and Ssm St Joseph Hospital West.

When was this NPI record last updated?

The NPPES record for Gary Gray was last updated on December 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.