Khalil J. Diab, MD
Pulmonary Disease Physician · Washington, DC
Khalil J. Diab, MD is a pulmonary disease physician with a practice address in Washington, District of Columbia, and NPI 1528230109, issued on Mar 24, 2008. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Khalil J. Diab
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 01062521A IN
Self-reported in NPPES; status is on the state search - Practice location
- 2150 Pennsylvania Ave NW, Washington, DC 20037
- Phone
- (202) 741-3333
- Enumerated
- Mar 24, 2008
- Record last updated
- Jun 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (202) 741-2238
- Medicaid ID
- 200909310 IN
- Medicare enrollment
- Enrolled (PECOS I20201014000694); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 76 in District of Columbia → Look up another NPI →
Also registered at 2150 Pennsylvania Ave NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad AalamStudent in an Organized Health Care Education/Training Program1851786909
- Nawaf Abaalkhail, MDCritical Care Medicine (Internal Medicine) Physician1104246958
- Theophilus Abah, MDAnesthesiology Physician1245810696
- Yoosif Abdalla, MDNephrology Physician1679851760
- Rim Abdallah, M.D.Student in an Organized Health Care Education/Training Program1962896886
- Rami AbdulbakiAnatomic Pathology & Clinical Pathology Physician1851950109
Verify Khalil J. Diab 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
35% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
923 Medicare Part D claims for 162 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.
Most prescribed
- Trelegy Ellipta134 claims
- Albuterol Sulfate Hfa86 claims
- Prednisone77 claims
- Breztri Aerosphere57 claims
- Azelastine Hcl44 claims
- Symbicort41 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: $1,350.19
20 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 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 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).
Khalil J. Diab among 76 pulmonary disease physician records in District of Columbia
Khalil J. Diab, MD is one of 76 pulmonary disease physician records with a practice address in District of Columbia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.
- NPI issued2008 · 63% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2002 · median 2000 among the 48 with a school on file
- Record last updated2020 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X 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).
Pulmonary Disease Physician providers in District of Columbia
There are 76 pulmonary disease physician records in District of Columbia.
All 76 in District of Columbia → Every provider in Washington → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Jalil Ahari, MDWashington, DC 200371205010808
- Ammar AlhaddadWashington, DC 200371558756619
- Byron Cooper, M.D.Washington, DC 200371164484341
- Karen Fagan, MDWashington, DC 200371053401737
- David Gross, M.D.Washington, DC 200371760444020
- Guillermo Gutierrez, MDWashington, DC 200371215946082
- Ann Medinger, M.D.Washington, DC 200371609876143
- Gary Miller, M.D.Washington, DC 200371386606952
Common questions
What is Khalil J. Diab, MD's NPI number?
Khalil J. Diab, MD's National Provider Identifier (NPI) is 1528230109, issued on Mar 24, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Khalil J. Diab, MD located?
The NPPES record lists a practice address at 2150 Pennsylvania Ave NW, Washington, DC, 20037. Phone: (202) 741-3333. Providers update this record themselves, so call before visiting.
How can I verify Khalil J. Diab, 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 Khalil J. Diab, MD prescribe under Medicare Part D?
In 2024, Khalil J. Diab, MD had 923 Medicare Part D claims for 162 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.