Ruth Isabel Hasen Flores, M.D.
Internal Medicine Physician · Washington, DC
Ruth Isabel Hasen Flores, M.D. is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1740530401, issued on Sep 10, 2012. Check the license (District of Columbia MD043022, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ruth Isabel Hasen Flores
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD043022 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3020 14TH St NW, Washington, DC 20009
- Phone
- (410) 350-3565
- Enumerated
- Sep 10, 2012
- Record last updated
- Jul 21, 2022
- Fax
- (410) 354-0186
- Medicare enrollment
- Enrolled (PECOS I20170912000010); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 3020 14TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Siham AbdiMidwife1790373256
- Vanessa Acosta, APRNPsychiatric/Mental Health Nurse Practitioner1881431203
- Marjorie Archila, PA-CPhysician Assistant1730046848
- Daniel Baker, MS, RN, AGACNP-BCAcute Care Nurse Practitioner1144689258
- Arnaz Bankwalla, M.D.Family Medicine Physician1760454045
- Latoya Barham, DDSPediatric Dentistry1508955378
Verify Ruth Isabel Hasen Flores in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD043022Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,361 Medicare Part D claims for 98 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Atorvastatin Calcium164 claims
- Metformin Hcl95 claims
- Lisinopril82 claims
- Amlodipine Besylate80 claims
- Hydrochlorothiazide60 claims
- Jardiance59 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.
Bills Medicare through 2 group practices
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
- Unity Health Care Inc.Washington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruth Isabel Hasen Flores among 901 internal medicine physician records in District of Columbia
Ruth Isabel Hasen Flores, M.D. 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 2012, is newer than 62% of them.
- NPI issued2012 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2003 · median 2008 among the 513 with a school on file
- Record last updated2022 · 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 →
The 8 internal medicine physician records with the nearest ZIP codes
- Ravi Ajmera, MDWashington, DC 200091205877131
- Eugenia Ayers, MDWashington, DC 200091346315256
- Robert Ball, MDWashington, DC 200091326052051
- Leslie Fenton, MDWashington, DC 200091396880357
- Bruce Furness, M.D.Washington, DC 200091518084920
- Ashley Harris, M.D.Washington, DC 200091851406904
- Patrik JohanssonWashington, DC 200091699834630
- Pamela Marks, M.D.Washington, DC 200091457329203
Common questions
What is Ruth Isabel Hasen Flores, M.D.'s NPI number?
Ruth Isabel Hasen Flores, M.D.'s National Provider Identifier (NPI) is 1740530401, issued on Sep 10, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Isabel Hasen Flores, M.D. located?
The NPPES record lists a practice address at 3020 14TH St NW, Washington, DC, 20009. Phone: (410) 350-3565. Providers update this record themselves, so call before visiting.
How can I verify Ruth Isabel Hasen Flores, M.D.'s license?
NPPES lists District of Columbia license number MD043022, as entered by the provider. 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 Ruth Isabel Hasen Flores, M.D. prescribe under Medicare Part D?
In 2024, Ruth Isabel Hasen Flores, M.D. had 1,361 Medicare Part D claims for 98 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.