NPPES file of Aug 9, 2026

Robert Kalfus

Sleep Medicine (Internal Medicine) Physician · Chevy Chase, MD

Robert Kalfus is a sleep medicine (internal medicine) physician with a practice address in Chevy Chase, Maryland, and NPI 1750605200, issued on Mar 25, 2010. Check the license (Maryland D007751, as entered in NPPES) on the Maryland Board of Physicians; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750605200
Name
Robert Kalfus
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License numbers
D007751 MD
MD039449 DC
Self-reported in NPPES; status is on the state search
Practice location
5454 Wisconsin Ave, Chevy Chase, MD 20815
Phone
(301) 654-1575
Enumerated
Mar 25, 2010
Record last updated
Jul 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(301) 654-5658
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest sleep medicine (internal medicine) physician records → All 26 in Maryland → Look up another NPI →

Also registered at 5454 Wisconsin Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marwa Adi, MDSpecialist1104820190
  2. Nabil Altememi, M.D.Sleep Medicine (Psychiatry & Neurology) Physician1699096529
  3. Trevor Andrews, DDSDentist1336263094
  4. Jennifer Arapian, PA-CSurgical Physician Assistant1780911362
  5. Augusto Araujo, D.M.D.Periodontics1457565384
  6. Edison Au, PTSpecialist1104922509

Verify Robert Kalfus in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D007751    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

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Robert Kalfus among 26 sleep medicine (internal medicine) physician records in Maryland

Robert Kalfus is one of 26 sleep medicine (internal medicine) physician records with a practice address in Maryland. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 69% of them.

  • NPI issued2010 · 69% of these records are older, 23% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2014 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in Maryland

There are 26 sleep medicine (internal medicine) physician records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 26 in Maryland → Every provider in Chevy Chase → Sleep Medicine (Internal Medicine) Physician nationwide →

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Mark Miller, MDOlney, MD 208321659306439
  2. Sahira Sekhon, MDRockville, MD 208501396235040
  3. Asefa Mekonnen, MDRockville, MD 208541306841812
  4. Jennifer Creamer, M.D.Bethesda, MD 208891629207857
  5. Sirisha Devabhaktuni, MDBethesda, MD 208891679922421
  6. Andrei Khramtsov, M.D.Bethesda, MD 208891942357280
  7. Victor Steiger, MDBethesda, MD 208891073674164
  8. Bernadette Villarreal, D.O.Bethesda, MD 208891346561115

Common questions

What is Robert Kalfus's NPI number?

Robert Kalfus's National Provider Identifier (NPI) is 1750605200, issued on Mar 25, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Robert Kalfus located?

The NPPES record lists a practice address at 5454 Wisconsin Ave, Chevy Chase, MD, 20815. Phone: (301) 654-1575. Providers update this record themselves, so call before visiting.

How can I verify Robert Kalfus's license?

NPPES lists Maryland license number D007751, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.