Dr. Rija Ahmad, MD
- Medicare services, 2024
- 422
- Medicare patients, 2024
- 138
- Part D claims, 2024
- 163
- Hospital affiliations
- 2
- Industry payments
- $33
- Practice address
- One Hamilton Health Place, Hamilton, NJ 08690
- Practice phone
- Call (609) 586-7900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ahmad'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. Rija Ahmad is an internist in Trenton, New Jersey
Dr. Ahmad practices at Robert Wood Johnson University Hospital Hamilton in Hamilton, New Jersey, part of RWJBarnabas Health.
Dr. Ahmad's NPI, 1669056297, was assigned on May 10, 2021. Dr. Ahmad holds New Jersey license 25MA12097600.
- NPI
- 1669056297NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254875909
- NPI enumeration date
- May 10, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (609) 586-7900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rija Ahmad practices in Hamilton and Trenton
Dr. Ahmad's primary practice is Robert Wood Johnson University Hospital Hamilton, at One Hamilton Health Place, Hamilton, NJ 08690 in Mercer County. The practice phone is (609) 586-7900. Dr. Ahmad also practices at Robert Wood Johnson University Hospital - Hamilton, 1 Hamilton Health Pl, Trenton, NJ 08690.
- Robert Wood Johnson University Hospital HamiltonPrimaryOne Hamilton Health Place, Hamilton, NJ 08690 · Mercer CountyPhone(609) 586-7900
- Robert Wood Johnson University Hospital - Hamilton1 Hamilton Health Pl, Trenton, NJ 08690 · Mercer CountyPhone(609) 586-7900
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Rija Ahmad is affiliated with 3 sites of care and 2 medical groups
Dr. Ahmad's primary practice is Robert Wood Johnson University Hospital Hamilton in Hamilton, New Jersey, part of RWJBarnabas Health. Dr. Ahmad is also affiliated with Memorial Hermann Katy Hospital. The medical group on file is RWJBarnabas Health Medical Group. Dmand AI also links Dr. Ahmad to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Rija Ahmad's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahmad practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Robert Wood Johnson University Hospital Hamilton | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rija Ahmad is one of 4,226 internists in New Jersey
Internal medicine is Dr. Ahmad's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ahmad is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Ahmad
Counts of internists 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. Rija Ahmad billed Medicare for 422 services in 2024
CMS data shows 422 Medicare services from Dr. Ahmad across 4 procedure codes in 2024, for 138 Medicare patients. Medicare paid $41,515 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ahmad compared with the New Jersey median for internists, 2024
- Dr. Ahmad
- New Jersey median
- Medicare services
- 422vs 72342% below
- Medicare patients
- 138vs 23140% below
- Part D claims
- 11vs 83099% below
Medians across 4,086 internists in New Jersey with Dmand AI profiles that report each measure.
Dr. Ahmad'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. Ahmad and other internists in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rija Ahmad treated 138 Medicare patients in 2024, average age 77
CMS counts 138 Medicare patients who saw Dr. Ahmad in 2024. The largest group is 75 to 84, with 45 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 2.40, 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. Ahmad's median patient age at 74, with 51% women.
Dr. Ahmad's Medicare patients by age, 2024
Dr. Ahmad's Medicare patients by sex, 2024
- Women7454%
- Men6446%
Chronic conditions among Dr. Ahmad's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease63%
- Arthritis62%
- Diabetes54%
- Chronic kidney disease51%
- Mood disorders50%
- Anxiety46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ahmad's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rija Ahmad wrote 163 Medicare Part D claims in 2024
In 2024, Dr. Ahmad wrote 163 Medicare Part D claims for 81 patients. 87% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $44 in total drug cost.
Dr. Ahmad's Part D claims by kind of drug, 2024
- Generic141 claims87%
- Brand-name and other22 claims13%
Dr. Ahmad'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.
Drug classes CMS tracks in Dr. Ahmad's Part D claims, 2024
- Antibiotics22%36 of 163 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Rija Ahmad takes part in Medicare
Dr. Ahmad accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rija Ahmad received $33 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Ahmad from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $19.
Companies that paid Dr. Ahmad the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Rija Ahmad'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand 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) |
| 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. Rija Ahmad
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. Rija Ahmad's NPI number?
Dr. Rija Ahmad's NPI number is 1669056297. It was assigned on May 10, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Rija Ahmad?
Dr. Rija Ahmad is an internist in Trenton, New Jersey. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Rija Ahmad practice?
Dr. Ahmad practices at One Hamilton Health Place, Hamilton, NJ 08690. Dr. Ahmad also practices at 1 Hamilton Health Pl, Trenton, NJ 08690. Dr. Ahmad's primary practice is Robert Wood Johnson University Hospital Hamilton in Hamilton, New Jersey, part of RWJBarnabas Health. Dmand AI also links Dr. Ahmad to 1 group practice or clinic and 1 medical group.
What is Dr. Rija Ahmad's office phone number?
The practice phone on file for Dr. Ahmad is (609) 586-7900.
What is Dr. Rija Ahmad's medical license number?
Dr. Ahmad holds New Jersey license 25MA12097600.
Which hospitals is Dr. Rija Ahmad affiliated with?
Dr. Ahmad practices at Robert Wood Johnson University Hospital Hamilton in Hamilton, New Jersey. Dr. Ahmad is also affiliated with Memorial Hermann Katy Hospital.
What medical group is Dr. Rija Ahmad part of?
Dr. Ahmad is linked to RWJBarnabas Health Medical Group. Dmand AI links Dr. Ahmad to 1 more medical group.
Does Dr. Rija Ahmad accept Medicare?
Yes. CMS data shows Dr. Ahmad billed Medicare for 422 services in 2024, and Dr. Ahmad accepts Medicare assignment.
How many Medicare patients does Dr. Rija Ahmad see?
CMS counts 138 Medicare patients who saw Dr. Ahmad in 2024, with an average age of 77.
What services does Dr. Rija Ahmad bill to Medicare?
In 2024, Dr. Ahmad's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
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What drugs does Dr. Rija Ahmad prescribe most?
In 2024 Medicare Part D data, Dr. Ahmad's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Rija Ahmad received payments from drug or device companies?
CMS Open Payments shows $33 in general payments to Dr. Ahmad from 2 companies from 2025 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Rija Ahmad been practicing?
Dr. Ahmad graduated from medical school in 2019, 7 years ago.
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