Dr. Gregg A. Willis, MD
- Medicare services, 2021
- 54
- Part D claims, 2024
- 19
- Industry payments
- $3,341
- Affiliated sites
- 1
- Medical groups
- 3
- Practice address
- 901 State Hwy 8, Cleveland, MS 38732
- Practice phone
- Call (662) 846-0061
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bolivar Medical Center
Cleveland, Mississippi
Find Dr. Willis' professional email, personal email and mobile number
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Dr. Gregg A. Willis is an OB-GYN in Cleveland, Mississippi
Dr. Willis practices at Bolivar Medical Center in Cleveland, Mississippi.
Dr. Willis' NPI, 1336171511, was assigned on July 7, 2006. Dr. Willis graduated from University of Mississippi School of Medicine in 1988. Dr. Willis holds Tennessee license 19852.
- NPI
- 1336171511NPI Registry (opens in a new tab)
- NPI enumeration date
- July 7, 2006
- NPI status
- Active
- Practice phone
- (662) 846-0061
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Gregg A. Willis practices at Bolivar Medical Center in Cleveland, Mississippi
Dr. Willis' primary practice is Bolivar Medical Center, at 901 State Hwy 8, Cleveland, MS 38732 in Bolivar County. The practice phone is (662) 846-0061.
- Bolivar Medical Center901 State Hwy 8, Cleveland, MS 38732 · Bolivar CountyPhone(662) 846-0061
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregg A. Willis is affiliated with 2 sites of care and 3 medical groups
Dr. Willis' primary practice is Bolivar Medical Center in Cleveland, Mississippi. The medical group on file is UAB St. Vincent’s Birmingham. Dmand AI also links Dr. Willis to 2 more medical groups and 1 physician office, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregg A. Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bolivar Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregg A. Willis is one of 280 OB-GYNs in Mississippi
Obstetrics and gynecology is Dr. Willis' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dmand AI has Dr. Willis' licenses on file in 2 states: Tennessee and Georgia.
Specialties and state licenses
- Obstetrics and gynecology, TennesseePrimary
- Georgia license
OB-GYNs near Dr. Willis
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregg A. Willis billed Medicare for 54 services in 2021
CMS data shows 54 Medicare services from Dr. Willis across 2 procedure codes in 2021. Medicare paid $2,026 for them. Every service was in an office.
Dr. Willis' Medicare services by type, 2017 to 2021
- 2017
- 2021
- Other services
- 2017: 112021: 54391%
- Lab and pathology
- 2017: 202021: 0100%
Dr. Willis compared with the Mississippi median for OB-GYNs, 2021
- Dr. Willis
- Mississippi median
- Medicare services
- 54vs 11453% below
- Part D claims
- 58vs 9640% below
Medians across 265 OB-GYNs in Mississippi with Dmand AI profiles that report each measure.
Dr. Willis' most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willis and other OB-GYNs in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregg A. Willis' patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Willis' median patient age at 31, with 100% women.
Dr. Willis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Gregg A. Willis wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Willis wrote 19 Medicare Part D claims. 89% of them were for generic drugs. They cover 2 drugs, with $9,971 in total drug cost. In 2021, CMS named 54 claims across 2 drugs.
Dr. Willis' Part D claims by kind of drug, 2024
- Generic17 claims89%
- Brand-name and other2 claims11%
Dr. Willis' most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 542022: 587%
Drugs named by CMS: 2 in 2022, 2 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Gregg A. Willis received $3,341 in industry payments from 2017 to 2021
CMS Open Payments shows 41 general payments to Dr. Willis from 18 drug and device companies from 2017 to 2021. Education make up the largest share, 75% of the total. Intuitive Surgical, Inc. paid the most, $2,654.
General payments to Dr. Willis by program year, 2017 to 2021
General payments to Dr. Willis by kind, 2017 to 2021
- Education$2,51275%
- Food and beverage$68921%
- Travel and lodging$1414%
Companies that paid Dr. Willis the most, 2017 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregg A. Willis graduated from University of Mississippi School of Medicine
Dr. Willis graduated from University of Mississippi School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregg A. Willis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregg A. Willis
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What is Dr. Gregg A. Willis' NPI number?
Dr. Gregg A. Willis' NPI number is 1336171511. It was assigned on July 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregg A. Willis?
Dr. Gregg A. Willis is an OB-GYN in Cleveland, Mississippi. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Gregg A. Willis practice?
Dr. Willis practices at 901 State Hwy 8, Cleveland, MS 38732. Dr. Willis' primary practice is Bolivar Medical Center in Cleveland, Mississippi. Dmand AI also links Dr. Willis to 2 medical groups and 1 physician office.
What is Dr. Gregg A. Willis' office phone number?
The practice phone on file for Dr. Willis is (662) 846-0061.
What is Dr. Gregg A. Willis' medical license number?
Dr. Willis holds Tennessee license 19852, one of the licenses on file in 2 states.
Which states has Dr. Gregg A. Willis been licensed in?
Dmand AI has state licenses on file for Dr. Willis in Tennessee and Georgia.
What medical group is Dr. Gregg A. Willis part of?
Dr. Willis is linked to UAB St. Vincent’s Birmingham. Dmand AI links Dr. Willis to 2 more medical groups.
Does Dr. Gregg A. Willis accept Medicare?
Yes. CMS data shows Dr. Willis billed Medicare for 54 services in 2021.
What services does Dr. Gregg A. Willis bill to Medicare?
In 2021, Dr. Willis' most billed Medicare services were medicare service (G0101) and medicare temporary code (Q0091).
Where did Dr. Gregg A. Willis go to medical school?
Dr. Willis graduated from University of Mississippi School of Medicine in 1988.
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What drugs does Dr. Gregg A. Willis prescribe most?
In 2022 Medicare Part D data, Dr. Willis' most prescribed drugs by claims were Estradiol and Premarin.
Has Dr. Gregg A. Willis received payments from drug or device companies?
CMS Open Payments shows $3,341 in general payments to Dr. Willis from 18 companies from 2017 to 2021. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Gregg A. Willis been practicing?
Dr. Willis graduated from medical school in 1988, 38 years ago.
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