James Grayson Johnson III, MA
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 1525 14th Street NW 5th Floor R, Washington, DC 20005
- Practice phone
- Call (202) 797-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Whitman-Walker Health - Washington (14th St NW)
Outpatient Addiction Treatment · Washington, District of Columbia
Find James Johnson's 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.
James Grayson Johnson III is a professional counselor in Washington, District of Columbia
James Johnson practices at Whitman-Walker Health - Washington (14th St NW) in Washington, District of Columbia.
James Johnson's NPI, 1770740730, was assigned on May 19, 2008. James Johnson holds Maryland license LC1657.
- NPI
- 1770740730NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103358080
- NPI enumeration date
- May 19, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 797-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Grayson Johnson III practices at Whitman-Walker Health - Washington (14th St NW) in Washington, District of Columbia
James Johnson's primary practice is Whitman-Walker Health - Washington (14th St NW), at 1525 14th Street NW 5th Floor R, Washington, DC 20005. The practice phone is (202) 797-4453.
- Whitman-Walker Health - Washington (14th St NW)1525 14th Street NW 5th Floor R, Washington, DC 20005Phone(202) 797-4453
Source: Dmand AI Affiliation Data
James Grayson Johnson III is affiliated with 2 sites of care and 2 medical groups
James Johnson's primary practice is Whitman-Walker Health - Washington (14th St NW) in Washington, District of Columbia. The medical group on file is Whitman-Walker Health. Dmand AI also links James Johnson to 1 more community health center and 1 medical group, each named with a free account. James Johnson's employer is on file too: a behavioral health center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at James Grayson Johnson III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Whitman-Walker Health - Washington (14th St NW) | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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James Grayson Johnson III is one of 172 professional counselors in District of Columbia
Professional is James Johnson's primary specialty in the NPI Registry, under taxonomy code 101YP2500X. James Johnson is licensed in Maryland.
Specialties and state licenses
- Professional counselor, MarylandPrimary
Professional counselors near James Johnson
Counts of professional counselors 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
James Grayson Johnson III's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts James Johnson's median patient age at 43, with 32% women.
James Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women32%
- Men66%
Source: Dmand AI Patient Panel Data
How James Grayson Johnson III takes part in Medicare
James Johnson 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 James Grayson Johnson III'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 | Dmand AI Affiliation 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 James Grayson Johnson III
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James Grayson Johnson III's NPI number?
James Grayson Johnson III's NPI number is 1770740730. It was assigned on May 19, 2008, and it is active in the NPI Registry.
What does James Grayson Johnson III specialize in?
James Grayson Johnson III is a professional counselor in Washington, District of Columbia. The primary specialty in the NPI Registry is Professional Counselor (taxonomy code 101YP2500X).
Where does James Grayson Johnson III practice?
James Johnson practices at 1525 14th Street NW 5th Floor R, Washington, DC 20005. James Johnson's primary practice is Whitman-Walker Health - Washington (14th St NW) in Washington, District of Columbia. Dmand AI also links James Johnson to 1 community health center and 1 medical group.
What is James Grayson Johnson III's office phone number?
The practice phone on file for James Johnson is (202) 797-4453.
What is James Grayson Johnson III's medical license number?
James Johnson holds Maryland license LC1657.
What medical group is James Grayson Johnson III part of?
James Johnson is linked to Whitman-Walker Health. Dmand AI links James Johnson to 1 more medical group.
Does James Grayson Johnson III accept Medicare?
Yes. CMS lists James Johnson as accepting Medicare assignment.
How long has James Grayson Johnson III been practicing?
James Johnson graduated from medical school in 2001, 25 years ago.
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