Chagai Mendelson, MD
Internal Medicine Physician · Washington, DC
Chagai Mendelson, MD is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1497250120, issued on Mar 26, 2018. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Chagai Mendelson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101267724 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW Dept OF, Washington, DC 20007
- Phone
- (202) 444-8168
- Enumerated
- Mar 26, 2018
- Record last updated
- Feb 15, 2024
- Fax
- (877) 303-1460
- Medicare enrollment
- Enrolled (PECOS I20240819000456); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 3800 Reservoir RD NW Dept OF
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Roxana AzimiStudent in an Organized Health Care Education/Training Program1649920026
- Ryan Bailey, MDStudent in an Organized Health Care Education/Training Program1851195424
Verify Chagai Mendelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
245 Medicare Part D claims for 95 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Rosuvastatin Calcium30 claims
- Metoprolol Succinate25 claims
- Furosemide23 claims
- Eliquis17 claims
- Losartan Potassium17 claims
- Lisinopril16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $213.75
4 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Privia Medical Group, LLCReston, VA
- Reston Hospital Center LLCReston, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chagai Mendelson among 901 internal medicine physician records in District of Columbia
Chagai Mendelson, MD is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2018 · median 2008 among the 513 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
891 internal medicine physician records list a practice address in Washington
They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.
All 901 in District of Columbia → Every provider in Washington → Internal Medicine Physician nationwide →
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- Jeanne Mandelblatt, MDWashington, DC 200071760481303
- Eileen MooreWashington, DC 200071053309427
- Dennis MurphyWashington, DC 200071679561930
- Chanigan Nilubol, M.D.Washington, DC 200071801844451
Common questions
What is Chagai Mendelson, MD's NPI number?
Chagai Mendelson, MD's National Provider Identifier (NPI) is 1497250120, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Chagai Mendelson, MD located?
The NPPES record lists a practice address at 3800 Reservoir RD NW Dept OF, Washington, DC, 20007. Phone: (202) 444-8168. Providers update this record themselves, so call before visiting.
How can I verify Chagai Mendelson, MD's license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chagai Mendelson, MD prescribe under Medicare Part D?
In 2024, Chagai Mendelson, MD had 245 Medicare Part D claims for 95 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.