NPPES file of Aug 9, 2026

Mahjabeen Siraj Ismail, MD

Psychiatry Physician · Washington, DC

Mahjabeen Siraj Ismail, MD is a psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1700291507, issued on Jul 1, 2014. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700291507
Name
Mahjabeen Siraj Ismail
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
2014014724 MO
Self-reported in NPPES; status is on the state search
Practice location
110 Irving St NW, Washington, DC 20010
Phone
(434) 924-5408
Enumerated
Jul 1, 2014
Record last updated
Aug 29, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191031002546); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 110 Irving St NW

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

  1. Margarita Abbey, NPNurse Practitioner1841245487
  2. Lauren Abbott, M.D.Emergency Medicine Physician1356576383
  3. Taha Abdalla, MDNeonatal-Perinatal Medicine Physician1225016587
  4. Mouin Abdallah, MDCardiovascular Disease Physician1063498780
  5. Waseem Abdallah, M.D.Psychiatry Physician1265961452
  6. Samer Abdel Al, MDOrthopaedic Surgery Physician1558778548

Verify Mahjabeen Siraj Ismail in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck 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 District of Columbia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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30% fewer Medicare Part D claims than the average psychiatry physician in 2024

702 Medicare Part D claims for 57 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Mahjabeen Ismail702
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl57 claims
  2. Escitalopram Oxalate38 claims
  3. Mirtazapine38 claims
  4. Olanzapine37 claims
  5. Sertraline Hcl30 claims
  6. Venlafaxine Hcl Er30 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 96 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.5
  2. Costout of 100 · 30%74.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Adventist Physician Services IncRockville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mahjabeen Siraj Ismail among 474 psychiatry physician records in District of Columbia

Mahjabeen Siraj Ismail, MD is one of 474 psychiatry physician records with a practice address in District of Columbia. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.

  • NPI issued2014 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 26% of these records are
  • Graduated2014 · median 2005 among the 124 with a school on file
  • Record last updated2019 · 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 2084P0800X 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).

467 psychiatry physician records list a practice address in Washington

They are 467 of the 45,857 NPPES records with a practice address in Washington, and 474 psychiatry physician records in District of Columbia.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Rebecca Begtrup, D.O., MPHWashington, DC 200101174704472
  2. David Call, M.D.Washington, DC 200101245558477
  3. Risa Fishman, MDWashington, DC 200101326086125
  4. Colleen Hawthorne, MDWashington, DC 200101760437776
  5. Zina Hussain, MDWashington, DC 200101982659678
  6. Joseph Jeral, MDWashington, DC 200101790732014
  7. Karen Johnson, MDWashington, DC 200101316993645
  8. Ellyn Johnson, M.D.Washington, DC 200101760703904

Common questions

What is Mahjabeen Siraj Ismail, MD's NPI number?

Mahjabeen Siraj Ismail, MD's National Provider Identifier (NPI) is 1700291507, issued on Jul 1, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mahjabeen Siraj Ismail, MD located?

The NPPES record lists a practice address at 110 Irving St NW, Washington, DC, 20010. Phone: (434) 924-5408. Providers update this record themselves, so call before visiting.

How can I verify Mahjabeen Siraj Ismail, 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 Mahjabeen Siraj Ismail, MD prescribe under Medicare Part D?

In 2024, Mahjabeen Siraj Ismail, MD had 702 Medicare Part D claims for 57 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Mahjabeen Siraj Ismail, MD's MIPS final score?

The 2023 MIPS final score is 96 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.