Karolyn Teufel, MD
Internal Medicine Physician · Washington, DC
Karolyn Teufel, MD is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1790759264, issued on Feb 13, 2006. Check the license (District of Columbia MD040414, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Karolyn Teufel
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD040414 DC
Self-reported in NPPES; status is on the state search - Practice location
- 900 23RD St NW, Washington, DC 20037
- Phone
- (202) 715-5109
- Enumerated
- Feb 13, 2006
- Record last updated
- Jan 17, 2026
- Medicare enrollment
- Enrolled (PECOS I20120808000425); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 900 23RD St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mariam Abdelshahid, PHARMDPharmacist1881271559
- Zayd Abdul-Ali, DPTNeurology Physical Therapist1215899257
- Saleem Abdulrauf, MDNeurological Surgery Physician1972614626
- Osereme AbuluStudent in an Organized Health Care Education/Training Program1285383729
- Crystal AdamsAnesthesiology Physician1922462233
- Leah AdamsStudent in an Organized Health Care Education/Training Program1457292682
Verify Karolyn Teufel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD040414Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Medical Faculty Associates, IncWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 891 in Washington → All 901 in District of Columbia → Every provider in Washington →
Other internal medicine physician records in District of Columbia
- Kathleen AbalosWashington, DC1831451764
- Mohamed Abdelfattah, M.DWashington, DC1164155818
- Diena AbdelmagedWashington, DC1598226391
- Ahmed Abdulameer, MDWashington, DC1295264166
- Fozia Abdulwahabe, M.DWashington, DC1386763373
- Syed Hasan Raza Abidi, MBBSWashington, DC1265127906
- Davis Abongwa, MDWashington, DC1780267559
- Randi Abramson, MDWashington, DC1841379252
- Khadega Abuelgasim Ahmed, M.DWashington, DC1801070297
- Ahmed AbughabanWashington, DC1205100518
Common questions
What is Karolyn Teufel, MD's NPI number?
Karolyn Teufel, MD's National Provider Identifier (NPI) is 1790759264, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karolyn Teufel, MD located?
The NPPES record lists a practice address at 900 23RD St NW, Washington, DC, 20037. Phone: (202) 715-5109. Providers update this record themselves, so call before visiting.
How can I verify Karolyn Teufel, MD's license?
NPPES lists District of Columbia license number MD040414, 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.
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.