Gregory D. Williams, PA-C
- Medicare services, 2024
- 67
- Medicare patients, 2024
- 104
- Part D claims, 2024
- 482
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 700 E Marshall Ave, Longview, TX 75601
- Practice phone
- Call (903) 315-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Good Shepherd Medical Center - Longview
Longview, Texas
Find Gregory Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gregory D. Williams is a physician assistant in Longview, Texas
Gregory Williams practices at Good Shepherd Medical Center - Longview in Longview, Texas.
Gregory Williams' NPI, 1326174012, was assigned on February 26, 2007. Gregory Williams holds Texas license PA05156.
- NPI
- 1326174012NPI Registry (opens in a new tab)
- NPI enumeration date
- February 26, 2007
- NPI status
- Active
- Practice phone
- (903) 315-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Gregory D. Williams practices at Good Shepherd Medical Center - Longview in Longview, Texas
Gregory Williams' primary practice is Good Shepherd Medical Center - Longview, at 700 E Marshall Ave, Longview, TX 75601 in Gregg County. The practice phone is (903) 315-2000.
- Good Shepherd Medical Center - Longview700 E Marshall Ave, Longview, TX 75601 · Gregg CountyPhone(903) 315-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gregory D. Williams is affiliated with 2 sites of care and 3 medical groups
Gregory Williams' primary practice is Good Shepherd Medical Center - Longview in Longview, Texas. Gregory Williams is also affiliated with Longview ContinueCARE Hospital. The medical group on file is Northeast Texas Emergency Physicians. Dmand AI also links Gregory Williams to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gregory D. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Good Shepherd Medical Center - Longview | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Gregory D. Williams is one of 8,663 physician assistants in Texas
Physician assistant is Gregory Williams' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Gregory Williams is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Dmand AI has Gregory Williams' licenses on file in 2 states: Texas and Louisiana.
Specialties and state licenses
- Physician assistant, TexasPrimary
- Medical physician assistant, Louisiana
Physician assistants near Gregory Williams
Counts of physician assistants 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
Gregory D. Williams billed Medicare for 67 services in 2024
CMS data shows 67 Medicare services from Gregory Williams across 1 procedure code in 2024, for 104 Medicare patients. Medicare paid $4,615 for them. Every service was in a facility, such as a hospital, rather than an office.
Gregory Williams compared with the Texas median for physician assistants, 2024
- Gregory Williams
- Texas median
- Medicare services
- 67vs 22971% below
- Medicare patients
- 104vs 995% above
- Part D claims
- 394vs 29633% above
Medians across 5,541 physician assistants in Texas with Dmand AI profiles that report each measure.
Gregory Williams' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Gregory Williams?
Medicare shows one payer. Book a meeting to get commercial claims data for Gregory Williams and other physician assistants in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Gregory D. Williams treated 104 Medicare patients in 2024, average age 70
CMS counts 104 Medicare patients who saw Gregory Williams in 2024. The largest group is 65 to 74, with 41 patients. 74% of them have high blood pressure, and 64% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gregory Williams' median patient age at 44, with 58% women.
Gregory Williams' Medicare patients by age, 2024
Gregory Williams' Medicare patients by sex, 2024
- Women6058%
- Men4442%
Chronic conditions among Gregory Williams' Medicare patients, 2024
- High blood pressure74%
- High cholesterol64%
- Arthritis44%
- Mood disorders40%
- Depression38%
- Anxiety36%
- Diabetes34%
- Ischemic heart disease30%
Share of Medicare patients with each condition. A patient can have several.
Gregory Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory D. Williams wrote 482 Medicare Part D claims in 2024
In 2024, Gregory Williams wrote 482 Medicare Part D claims for 326 patients. 97% of them were for generic drugs. CMS names the drug for 394 of them, across 16 drugs with 11 or more claims each, at $2,402 in total drug cost.
Gregory Williams' Part D claims by kind of drug, 2024
- Generic468 claims97%
- Brand-name14 claims3%
Gregory Williams' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Gregory Williams' Part D claims, 2024
- Opioids4%19 of 482 claims
- Antibiotics36%174 of 482 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Gregory D. Williams is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Gregory D. Williams'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 DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Gregory D. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory D. Williams' NPI number?
Gregory D. Williams' NPI number is 1326174012. It was assigned on February 26, 2007, and it is active in the NPI Registry.
What does Gregory D. Williams specialize in?
Gregory D. Williams is a physician assistant in Longview, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gregory D. Williams practice?
Gregory Williams practices at 700 E Marshall Ave, Longview, TX 75601. Gregory Williams' primary practice is Good Shepherd Medical Center - Longview in Longview, Texas. Dmand AI also links Gregory Williams to 2 medical groups.
What is Gregory D. Williams' office phone number?
The practice phone on file for Gregory Williams is (903) 315-2000.
What is Gregory D. Williams' medical license number?
Gregory Williams holds Texas license PA05156, one of the licenses on file in 2 states.
Which states has Gregory D. Williams been licensed in?
Dmand AI has state licenses on file for Gregory Williams in Texas and Louisiana.
Which hospitals is Gregory D. Williams affiliated with?
Gregory Williams is affiliated with Longview ContinueCARE Hospital.
What medical group is Gregory D. Williams part of?
Gregory Williams is linked to Northeast Texas Emergency Physicians. Dmand AI links Gregory Williams to 2 more medical groups.
Does Gregory D. Williams accept Medicare?
Yes. CMS data shows Gregory Williams billed Medicare for 67 services in 2024.
How many Medicare patients does Gregory D. Williams see?
CMS counts 104 Medicare patients who saw Gregory Williams in 2024, with an average age of 70.
Show 4 more questionsShow fewer questions
Is Gregory D. Williams board certified?
Yes. Gregory Williams is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Gregory D. Williams bill to Medicare?
In 2024, Gregory Williams' most billed Medicare services were emergency department visit (99284).
What drugs does Gregory D. Williams prescribe most?
In 2024 Medicare Part D data, Gregory Williams' most prescribed drugs by claims were Cephalexin, Ondansetron ODT and Meloxicam.
How long has Gregory D. Williams been practicing?
Gregory Williams' NPI was assigned in 2007.
Selling to physician assistant practices?
See physician assistants in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card