Dr. Mary Jane McMahon Reen, MD
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2015
- Practice address
- 3800 Reservoir NW Rd, Washington, DC 20007
- Practice phone
- Call (202) 444-1400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medstar Georgetown Medical Center
Washington, District of Columbia
Find Dr. Reen'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.
Dr. Mary Jane McMahon Reen is a pediatrician in Washington, District of Columbia
Dr. Reen practices at Medstar Georgetown Medical Center in Washington, District of Columbia.
Dr. Reen's NPI, 1669867784, was assigned on April 6, 2015. Dr. Reen holds District of Columbia license MD046450.
- NPI
- 1669867784NPI Registry (opens in a new tab)
- NPI enumeration date
- April 6, 2015
- NPI status
- Active
- Practice phone
- (202) 444-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mary Jane McMahon Reen practices at Medstar Georgetown Medical Center in Washington, District of Columbia
Dr. Reen's primary practice is Medstar Georgetown Medical Center, at 3800 Reservoir NW Rd, Washington, DC 20007 in District Of Columbia County. The practice phone is (202) 444-1400.
- Medstar Georgetown Medical Center3800 Reservoir NW Rd, Washington, DC 20007 · District Of Columbia CountyPhone(202) 444-1400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mary Jane McMahon Reen is affiliated with 2 sites of care and 2 medical groups
Dr. Reen's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dr. Reen is also affiliated with MedStar Georgetown University Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Reen to 1 more medical group, 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 Dr. Mary Jane McMahon Reen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Reen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medstar Georgetown Medical Center | 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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Dr. Mary Jane McMahon Reen is one of 545 pediatricians in District of Columbia
Pediatrics is Dr. Reen's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Reen is licensed in District of Columbia.
Specialties and state licenses
- Pediatrics, District of ColumbiaPrimary
Pediatricians near Dr. Reen
Counts of pediatricians 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. Mary Jane McMahon Reen's patients have a median age of 8
Across all payers, Dmand AI patient panel data puts Dr. Reen's median patient age at 8, with 50% women.
Dr. Reen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 8
Patient panel by sex, all payers
- Women50%
- Men49%
Source: Dmand AI Patient Panel Data
Sources for Dr. Mary Jane McMahon Reen'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 patients and the all-payer patient panel | Dmand AI Patient Panel 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. Mary Jane McMahon Reen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mary Jane McMahon Reen's NPI number?
Dr. Mary Jane McMahon Reen's NPI number is 1669867784. It was assigned on April 6, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Jane McMahon Reen?
Dr. Mary Jane McMahon Reen is a pediatrician in Washington, District of Columbia. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Mary Jane McMahon Reen practice?
Dr. Reen practices at 3800 Reservoir NW Rd, Washington, DC 20007. Dr. Reen's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dmand AI also links Dr. Reen to 1 medical group.
What is Dr. Mary Jane McMahon Reen's office phone number?
The practice phone on file for Dr. Reen is (202) 444-1400.
What is Dr. Mary Jane McMahon Reen's medical license number?
Dr. Reen holds District of Columbia license MD046450.
Which hospitals is Dr. Mary Jane McMahon Reen affiliated with?
Dr. Reen is affiliated with MedStar Georgetown University Hospital.
What medical group is Dr. Mary Jane McMahon Reen part of?
Dr. Reen is linked to MedStar Medical Group. Dmand AI links Dr. Reen to 1 more medical group.
How long has Dr. Mary Jane McMahon Reen been practicing?
Dr. Reen's NPI was assigned in 2015.
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