Dr. Homayoon Mahjoob, MD
- Medicare services, 2024
- 1,055
- Medicare patients, 2024
- 325
- Part D claims, 2024
- 121
- Hospital affiliations
- 2
- Industry payments
- $3,269
- Practice address
- 901 Harry S Truman N Dr, Upper Marlboro, MD 20774
- Practice phone
- Call (240) 677-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UM Capital Region Medical Center
Upper Marlboro, Maryland
Find Dr. Mahjoob's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Homayoon Mahjoob is a gastroenterologist in Upper Marlboro, Maryland
Dr. Mahjoob practices at UM Capital Region Medical Center in Upper Marlboro, Maryland.
Dr. Mahjoob's NPI, 1740494178, was assigned on May 8, 2007. Dr. Mahjoob holds Massachusetts license 236692.
- NPI
- 1740494178NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103919741
- NPI enumeration date
- May 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (240) 677-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Homayoon Mahjoob practices at UM Capital Region Medical Center in Upper Marlboro, Maryland
Dr. Mahjoob's primary practice is UM Capital Region Medical Center, at 901 Harry S Truman N Dr, Upper Marlboro, MD 20774 in Prince Georges County. The practice phone is (240) 677-3000.
- UM Capital Region Medical Center901 Harry S Truman N Dr, Upper Marlboro, MD 20774 · Prince Georges CountyPhone(240) 677-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Homayoon Mahjoob is affiliated with 4 sites of care and 3 medical groups
Dr. Mahjoob's primary practice is UM Capital Region Medical Center in Upper Marlboro, Maryland. Dr. Mahjoob is also affiliated with University of Maryland Capital Region Medical Center. The medical group on file is Inova Urgent Care Center. Dmand AI also links Dr. Mahjoob to 1 more hospital, 2 medical groups and 1 physician office, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Homayoon Mahjoob's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahjoob practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UM Capital Region Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Homayoon Mahjoob is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Mahjoob's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Mahjoob's licenses on file in 2 states: Massachusetts and Michigan.
Specialties and state licenses
- Gastroenterology, MassachusettsPrimary
- Michigan license
Gastroenterologists near Dr. Mahjoob
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Homayoon Mahjoob billed Medicare for 1,055 services in 2024
CMS data shows 1,055 Medicare services from Dr. Mahjoob across 10 procedure codes in 2024, for 325 Medicare patients. Medicare paid $99,888 for them.
Dr. Mahjoob's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6472024: 91041%
- Surgery
- 2023: 1012024: 11615%
- Other services
- 2023: 292024: 29No change
Where Dr. Mahjoob's Medicare services took place, 2024
- In an office19619%
- In a facility85981%
Dr. Mahjoob compared with the Maryland median for gastroenterologists, 2024
- Dr. Mahjoob
- Maryland median
- Medicare services
- 1,055vs 66858% above
- Medicare patients
- 325vs 39017% below
- Part D claims
- 76vs 39281% below
Medians across 396 gastroenterologists in Maryland with Dmand AI profiles that report each measure.
Dr. Mahjoob's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mahjoob and other gastroenterologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Homayoon Mahjoob treated 325 Medicare patients in 2024, average age 74
CMS counts 325 Medicare patients who saw Dr. Mahjoob in 2024. The largest group is 75 to 84, with 112 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mahjoob's median patient age at 70, with 53% women.
Dr. Mahjoob's Medicare patients by age, 2024
Dr. Mahjoob's Medicare patients by sex, 2024
- Women18156%
- Men14444%
Chronic conditions among Dr. Mahjoob's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes59%
- Chronic kidney disease52%
- Arthritis48%
- Heart failure39%
- Ischemic heart disease39%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahjoob's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Homayoon Mahjoob wrote 121 Medicare Part D claims in 2024
In 2024, Dr. Mahjoob wrote 121 Medicare Part D claims for 57 patients. 88% of them were for generic drugs. CMS names the drug for 76 of them, across 2 drugs with 11 or more claims each, at $2,497 in total drug cost. In 2023, CMS named 53 claims across 2 drugs.
Dr. Mahjoob's Part D claims by kind of drug, 2024
- Generic107 claims88%
- Brand-name14 claims12%
Dr. Mahjoob's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 532024: 7643%
Drugs named by CMS: 2 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Homayoon Mahjoob ranks in the 95th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Mahjoob accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 286 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Mahjoob, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mahjoob ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 95th percentile286 procedures
- Colonoscopy
- 82nd percentile112 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Homayoon Mahjoob received $3,269 in industry payments from 2016 to 2025
CMS Open Payments shows 36 general payments to Dr. Mahjoob from 13 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 64% of the total. Boston Scientific Corporation paid the most, $1,259.
General payments to Dr. Mahjoob by program year, 2016 to 2025
General payments to Dr. Mahjoob by kind, 2016 to 2025
- Travel and lodging$2,08864%
- Food and beverage$1,16436%
- Education$171%
Companies that paid Dr. Mahjoob the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Homayoon Mahjoob's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Homayoon Mahjoob
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Homayoon Mahjoob's NPI number?
Dr. Homayoon Mahjoob's NPI number is 1740494178. It was assigned on May 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Homayoon Mahjoob?
Dr. Homayoon Mahjoob is a gastroenterologist in Upper Marlboro, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Homayoon Mahjoob practice?
Dr. Mahjoob practices at 901 Harry S Truman N Dr, Upper Marlboro, MD 20774. Dr. Mahjoob's primary practice is UM Capital Region Medical Center in Upper Marlboro, Maryland. Dmand AI also links Dr. Mahjoob to 1 hospital, 2 medical groups and 1 physician office.
What is Dr. Homayoon Mahjoob's office phone number?
The practice phone on file for Dr. Mahjoob is (240) 677-3000.
What is Dr. Homayoon Mahjoob's medical license number?
Dr. Mahjoob holds Massachusetts license 236692, one of the licenses on file in 2 states.
Which states has Dr. Homayoon Mahjoob been licensed in?
Dmand AI has state licenses on file for Dr. Mahjoob in Massachusetts and Michigan.
Which hospitals is Dr. Homayoon Mahjoob affiliated with?
Dr. Mahjoob is affiliated with University of Maryland Capital Region Medical Center. Dmand AI links Dr. Mahjoob to 1 more hospital.
What medical group is Dr. Homayoon Mahjoob part of?
Dr. Mahjoob is linked to Inova Urgent Care Center. Dmand AI links Dr. Mahjoob to 2 more medical groups.
Does Dr. Homayoon Mahjoob accept Medicare?
Yes. CMS data shows Dr. Mahjoob billed Medicare for 1,055 services in 2024, and Dr. Mahjoob accepts Medicare assignment.
How many Medicare patients does Dr. Homayoon Mahjoob see?
CMS counts 325 Medicare patients who saw Dr. Mahjoob in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Homayoon Mahjoob bill to Medicare?
In 2024, Dr. Mahjoob's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and office visit, established patient (99213).
What drugs does Dr. Homayoon Mahjoob prescribe most?
In 2024 Medicare Part D data, Dr. Mahjoob's most prescribed drugs by claims were Pantoprazole Sodium and Sod Sulf-Potass Sulf-Mag Sulf.
Has Dr. Homayoon Mahjoob received payments from drug or device companies?
CMS Open Payments shows $3,269 in general payments to Dr. Mahjoob from 13 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Homayoon Mahjoob been practicing?
Dr. Mahjoob graduated from medical school in 1991, 35 years ago.
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