Active NPI 1497729826 Individual Practitioner Male Practitioner

Dr. Gary D Gray , MD

Internal Medicine • O Fallon, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gary Gray, MD is a certified Internal Medicine practicing in O Fallon, MO. With approximately 27 years of clinical experience since graduating from Saint Louis University School Of Medicine in 1999, Dr. Gray delivers high-quality medical care to the local community at 5551 WINGHAVEN BLVD.

Dr. Gray maintains professional affiliations with Internal Medicine At Winghaven, Llc, Aging Well Health Care, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, established patient outpatient office visit, influenza vaccine split virus, preservative free. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

5551 Winghaven Blvd
Ste 290

O Fallon, MO 633683617

Telephone 6366952575

Fax 3145905938

Associated Practice Facility / Clinic

🏢 St Lukes Episcopal Presbyterian Hospital Facility NPI 1619968096

Medicare Profile & Education

Medical School

Saint Louis University School Of Medicine

Graduation Year

1999

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in O Fallon, MO

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

27 Yrs +2.9 yrs vs City Avg

City Avg: 24.1 Yrs

State Avg: 25.5 Yrs

Regional Practice Density

17 Specialists

Practicing in O Fallon, MO (2747 Statewide)

Telehealth Adoption Rate

35.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

42.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gray (27 Years) 27 Yrs

O Fallon Specialty Average (24.1 Years) 24.1 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	228	228	$238.00	$124.37
99213 Established patient office or other outpatient visit, typically 15 minutes	166	125	$145.00	$87.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	127	91	$213.00	$123.15
90662 Influenza vaccine split virus, preservative free	52	52	$141.26	$80.91
G0008 Administration of influenza virus vaccine	51	51	$60.00	$31.21
99495 Transitional care management services for problem of at least moderate complexity	29	26	$328.00	$197.93
G0009 Administration of pneumococcal vaccine	12	12	$49.00	$31.21
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	12	12	$446.66	$289.02
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	12	12	$331.00	$158.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	233	233	$238.00	$127.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	187	132	$213.00	$125.88
99213 Established patient office or other outpatient visit, typically 15 minutes	125	99	$145.00	$88.93
G0008 Administration of influenza virus vaccine	57	57	$60.00	$29.94
90662 Influenza vaccine split virus, preservative free	55	55	$139.88	$71.93
99495 Transitional care management services for problem of at least moderate complexity	32	30	$328.00	$200.89
G0009 Administration of pneumococcal vaccine	25	25	$49.00	$29.94
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	19	19	$446.66	$282.38
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	12	12	$331.00	$163.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	248	248	$238.00	$131.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	211	150	$213.00	$128.24
99213 Established patient office or other outpatient visit, typically 15 minutes	164	133	$145.00	$90.84
90662 Influenza vaccine split virus, preservative free	49	49	$139.88	$68.37
G0008 Administration of influenza virus vaccine	49	49	$60.00	$28.98
G0009 Administration of pneumococcal vaccine	27	27	$49.00	$29.19
99495 Transitional care management services for problem of at least moderate complexity	24	19	$328.00	$206.51
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use	19	19	$446.66	$276.69
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	16	16	$331.00	$167.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	269	186	$213.00	$129.81
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	258	258	$238.00	$133.89
99213 Established patient office or other outpatient visit, typically 15 minutes	194	150	$145.00	$91.58
G0008 Administration of influenza virus vaccine	52	52	$46.00	$16.79
90662 Influenza vaccine split virus, preservative free	50	50	$122.00	$65.26
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	35	35	$180.00	$124.55
G0009 Administration of pneumococcal vaccine	34	34	$49.00	$16.74
99495 Transitional care management services for problem of at least moderate complexity	26	23	$328.00	$207.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$214.00	$113.33
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	11	11	$331.00	$170.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	304	191	$213.00	$107.26
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	270	270	$238.00	$115.37
99213 Established patient office or other outpatient visit, typically 15 minutes	231	177	$145.00	$74.30
G0009 Administration of pneumococcal vaccine	52	52	$49.00	$16.49
99495 Transitional care management services for problem of at least moderate complexity	38	30	$328.00	$183.88
G0008 Administration of influenza virus vaccine	37	36	$46.00	$16.07
90662 Influenza vaccine split virus, preservative free	36	35	$121.33	$59.12
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	35	35	$180.00	$118.78
90670 Pneumococcal vaccine for injection into muscle	16	16	$308.00	$228.90
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	14	14	$331.00	$166.17
99442 Telephone medical discussion with physician, 11-20 minutes	14	14	$113.20	$64.68
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$87.00	$45.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	425	258	$145.00	$72.67
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	399	237	$213.00	$105.98
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	299	299	$238.00	$113.27
G0009 Administration of pneumococcal vaccine	80	80	$49.00	$16.20
90670 Pneumococcal vaccine for injection into muscle	46	46	$308.00	$208.19
G0008 Administration of influenza virus vaccine	45	44	$46.07	$15.84
90662 Influenza vaccine split virus, preservative free	38	38	$98.00	$53.38
90732 Vaccine for pneumococcal polysaccharide for injection beneath the skin or into muscle, patient 2 years or older	34	34	$180.00	$111.18
99495 Transitional care management services for problem of at least moderate complexity	27	27	$328.00	$160.67
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	26	26	$331.00	$162.93
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	18	$87.00	$44.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	321	182	$212.23	$105.05
99213 Established patient office or other outpatient visit, typically 15 minutes	254	152	$144.17	$71.28
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	164	164	$238.00	$114.49
G0009 Administration of pneumococcal vaccine	62	62	$48.61	$19.90
90670 Pneumococcal vaccine for injection into muscle	60	60	$308.00	$199.18
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	50	50	$327.00	$159.76
G0008 Administration of influenza virus vaccine	33	33	$46.55	$19.90
99495 Transitional care management services for problem of at least moderate complexity	28	24	$328.00	$155.53
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	28	28	$42.00	$18.65
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$213.00	$101.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	322	164	$144.00	$79.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	269	147	$212.00	$115.43
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	61	61	$238.00	$130.15
90686 Vaccine for influenza for administration into muscle, 0.5 ml dosage	50	50	$42.00	$18.28
G0008 Administration of influenza virus vaccine	49	49	$49.00	$24.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$213.00	$115.00
99495 Transitional care management services for problem of at least moderate complexity	19	18	$328.00	$177.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	17	17	$327.00	$173.96
G0009 Administration of pneumococcal vaccine	16	16	$49.00	$24.52
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$146.00	$80.30
90670 Pneumococcal vaccine for injection into muscle	12	12	$308.00	$188.79

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License MO 2001028980

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.

Hospital & Practice Group Affiliations

Internal Medicine At Winghaven, Llc

5551 Winghaven Blvd, O Fallon, MO 633683629

Phone: 6366952575

Aging Well Health Care, Llc

7212 Balson Ave, Saint Louis, MO 631303001

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

2 Associated Practitioners

Jenna Sanders , ANP-C

Nurse Practitioner - Adult Health

NPI 1407295355

Adult Nurse Practitioner (Certified)

Gina Schnurbusch , FNP

Nurse Practitioner - Family

NPI 1861928244

Family Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active December 02, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location December 02, 2014

Registered at 5551 WINGHAVEN BLVD, STE 290, O FALLON, MO 633683617 (Tel: 6366952575)

📍

Updated Business Mailing Address December 02, 2014

Registered at 5551 WINGHAVEN BLVD, STE 290, O FALLON, MO 633683617 (Tel: 6366952575)

👤

Provider Name / Credentials Updated December 02, 2014

Recorded as GARY GRAY, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 02, 2014

Internal Medicine (License #2001028980 in MO)

🟢

Initial NPI Registration & Enumeration February 14, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1497729826

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: February 14, 2006

Last Update: December 02, 2014

Sole Proprietor: No

Update or Correct Profile

Mailing Address

5551 Winghaven Blvd, Ste 290

O Fallon, MO 633683617

Phone: 6366952575

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.