Dr. Gregory Constantine, MD
- Medicare services, 2024
- 131
- Medicare patients, 2024
- 85
- MIPS score, 2024
- 82
- Hospital affiliations
- 1
- Industry payments
- $17
- 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. Constantine'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. Gregory Constantine is an internist in Washington, District of Columbia
Dr. Constantine practices at Medstar Georgetown Medical Center in Washington, District of Columbia.
Dr. Constantine's NPI, 1881038107, was assigned on April 18, 2013. Dr. Constantine graduated from University of Texas Medical School at San Antonio in 2013. Dr. Constantine holds Texas license BP10046658.
- NPI
- 1881038107NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103105507
- NPI enumeration date
- April 18, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 444-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Constantine practices at Medstar Georgetown Medical Center in Washington, District of Columbia
Dr. Constantine'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. Gregory Constantine is affiliated with 2 sites of care and 1 medical group
Dr. Constantine's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia. Dr. Constantine is also affiliated with MedStar Georgetown University Hospital. The medical group on file is MedStar Medical Group.
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. Gregory Constantine's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Constantine 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 affiliated site | 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.
Dr. Gregory Constantine is one of 660 internists in District of Columbia
Internal medicine is Dr. Constantine's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Constantine's licenses on file in 2 states: Texas and District of Columbia.
Specialties and state licenses
- Internal medicine, TexasPrimary
- Allergy and immunology (internal medicine), District of Columbia
Internists near Dr. Constantine
Counts of internists 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. Gregory Constantine billed Medicare for 131 services in 2024
CMS data shows 131 Medicare services from Dr. Constantine across 2 procedure codes in 2024, for 85 Medicare patients. Medicare paid $15,490 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Constantine's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 822024: 13160%
Dr. Constantine compared with the District of Columbia median for internists, 2024
- Dr. Constantine
- District of Columbia median
- Medicare services
- 131vs 35463% below
- Medicare patients
- 85vs 15344% below
Medians across 591 internists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Constantine's 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 Dr. Constantine?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Constantine and other internists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Constantine treated 85 Medicare patients in 2024, average age 72
CMS counts 85 Medicare patients who saw Dr. Constantine in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 3.54, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Constantine's median patient age at 54, with 78% women.
Dr. Constantine's Medicare patients by age, 2024
Dr. Constantine's Medicare patients by sex, 2024
- Women5059%
- Men3541%
Chronic conditions among Dr. Constantine's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease56%
- Arthritis55%
- Diabetes55%
- Ischemic heart disease52%
- Mood disorders42%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Constantine's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women78%
- Men11%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Constantine scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Constantine for performance year 2024, reported as part of a group. Dr. Constantine accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Constantine's MIPS scores, performance year 2024
- 82of 100Final score
- 67.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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.
Dr. Gregory Constantine received $17 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Constantine from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $17.
Companies that paid Dr. Constantine the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Constantine graduated from University of Texas Medical School at San Antonio
Dr. Constantine graduated from University of Texas Medical School at San Antonio in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory Constantine'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Gregory Constantine
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. Gregory Constantine's NPI number?
Dr. Gregory Constantine's NPI number is 1881038107. It was assigned on April 18, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Constantine?
Dr. Gregory Constantine is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gregory Constantine practice?
Dr. Constantine practices at 3800 Reservoir NW Rd, Washington, DC 20007. Dr. Constantine's primary practice is Medstar Georgetown Medical Center in Washington, District of Columbia.
What is Dr. Gregory Constantine's office phone number?
The practice phone on file for Dr. Constantine is (202) 444-1400.
What is Dr. Gregory Constantine's medical license number?
Dr. Constantine holds Texas license BP10046658, one of the licenses on file in 2 states.
Which states has Dr. Gregory Constantine been licensed in?
Dmand AI has state licenses on file for Dr. Constantine in Texas and District of Columbia.
Which hospitals is Dr. Gregory Constantine affiliated with?
Dr. Constantine is affiliated with MedStar Georgetown University Hospital.
What medical group is Dr. Gregory Constantine part of?
Dr. Constantine is linked to MedStar Medical Group.
Does Dr. Gregory Constantine accept Medicare?
Yes. CMS data shows Dr. Constantine billed Medicare for 131 services in 2024, and Dr. Constantine accepts Medicare assignment.
What is Dr. Gregory Constantine's MIPS score?
Dr. Constantine's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Gregory Constantine see?
CMS counts 85 Medicare patients who saw Dr. Constantine in 2024, with an average age of 72.
What services does Dr. Gregory Constantine bill to Medicare?
In 2024, Dr. Constantine's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Gregory Constantine go to medical school?
Dr. Constantine graduated from University of Texas Medical School at San Antonio in 2013.
Has Dr. Gregory Constantine received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Constantine from 1 company from 2016 to 2016. The largest total came from Astellas Pharma US Inc.
How long has Dr. Gregory Constantine been practicing?
Dr. Constantine graduated from medical school in 2013, 13 years ago.
Selling to internal medicine practices?
See internists in District of Columbia 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