Gregory Dennis Hollis
- Hospital affiliations
- 1
- Medical groups
- 4
- State license
- 1
- Year NPI issued
- 2023
- Practice locations
- 2
- Practice address
- 1328 W Street, Se, Washington, DC 20020
- Practice phone
- Call (202) 610-7160
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Anacostia Health Center
FQHC - Main Site · Washington, District of Columbia
Find Gregory Hollis' 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 Dennis Hollis is a physician assistant in Washington, District of Columbia
Gregory Hollis practices at Anacostia Health Center in Washington, District of Columbia.
Gregory Hollis' NPI, 1174308126, was assigned on August 29, 2023.
- NPI
- 1174308126NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961932967
- NPI enumeration date
- August 29, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 610-7160
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory Dennis Hollis practices at 2 locations in Washington, District of Columbia
Gregory Hollis' primary practice is Anacostia Health Center, at 1328 W Street, Se, Washington, DC 20020 in District Of Columbia County. The practice phone is (202) 610-7160. Gregory Hollis also practices at Unity Health Care, Inc, 1500 Galen SE St, Washington, DC 20020.
- Anacostia Health CenterPrimary1328 W Street, Se, Washington, DC 20020 · District Of Columbia CountyPhone(202) 610-7160
- Unity Health Care, Inc1500 Galen SE St, Washington, DC 20020 · District Of Columbia CountyPhone(202) 610-7160
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Gregory Dennis Hollis is affiliated with 4 sites of care and 4 medical groups
Gregory Hollis' primary practice is Anacostia Health Center in Washington, District of Columbia. Gregory Hollis is also affiliated with MedStar Washington Hospital Center. The medical group on file is MedStar Health: Urgent Care in Wheaton. Dmand AI also links Gregory Hollis to 3 more medical groups, 1 community health center and 1 group practice or clinic, each named with a free account. Gregory Hollis' employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gregory Dennis Hollis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Hollis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Anacostia Health Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory Dennis Hollis is one of 380 physician assistants in District of Columbia
Physician assistant is Gregory Hollis' primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Gregory Hollis
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 Dennis Hollis' patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Gregory Hollis' median patient age at 51, with 67% women.
Gregory Hollis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
How Gregory Dennis Hollis takes part in Medicare
Gregory Hollis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Gregory Dennis Hollis'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Dennis Hollis
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 Dennis Hollis' NPI number?
Gregory Dennis Hollis' NPI number is 1174308126. It was assigned on August 29, 2023, and it is active in the NPI Registry.
What does Gregory Dennis Hollis specialize in?
Gregory Dennis Hollis is a physician assistant in Washington, District of Columbia. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gregory Dennis Hollis practice?
Gregory Hollis practices at 1328 W Street, Se, Washington, DC 20020. Gregory Hollis also practices at 1500 Galen SE St, Washington, DC 20020. Gregory Hollis' primary practice is Anacostia Health Center in Washington, District of Columbia. Dmand AI also links Gregory Hollis to 3 medical groups, 1 community health center and 1 group practice or clinic.
What is Gregory Dennis Hollis' office phone number?
The practice phone on file for Gregory Hollis is (202) 610-7160.
Which hospitals is Gregory Dennis Hollis affiliated with?
Gregory Hollis is affiliated with MedStar Washington Hospital Center.
What medical group is Gregory Dennis Hollis part of?
Gregory Hollis is linked to MedStar Health: Urgent Care in Wheaton. Dmand AI links Gregory Hollis to 3 more medical groups.
Does Gregory Dennis Hollis accept Medicare?
Yes. CMS lists Gregory Hollis as accepting Medicare assignment.
How long has Gregory Dennis Hollis been practicing?
Gregory Hollis graduated from medical school in 2024, 2 years ago.
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