Dr. Nilesh Mahajan, MD
- Part D claims, 2024
- 424
- Hospital affiliations
- 3
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 1923 South Utica Avenue, Tulsa, OK 74104
- Practice phone
- Call (918) 744-2296
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mahajan'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. Nilesh Mahajan is an internist in Tulsa, Oklahoma
Dr. Mahajan practices at Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance.
Dr. Mahajan's NPI, 1568195865, was assigned on July 5, 2022. Dr. Mahajan holds Oklahoma license 44996.
- NPI
- 1568195865NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446751887
- NPI enumeration date
- July 5, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 744-2296
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nilesh Mahajan practices at Ascension St. John Medical Center in Tulsa, Oklahoma
Dr. Mahajan's primary practice is Ascension St. John Medical Center, at 1923 South Utica Avenue, Tulsa, OK 74104 in Tulsa County. The practice phone is (918) 744-2296.
- Ascension St. John Medical Center1923 South Utica Avenue, Tulsa, OK 74104 · Tulsa CountyPhone(918) 744-2296
Source: Dmand AI Affiliation Data
Dr. Nilesh Mahajan is affiliated with 4 sites of care and 1 medical group
Dr. Mahajan's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. Dr. Mahajan is also affiliated with Ascension St. John Jane Phillips Medical Center. The medical group on file is US Acute Care Solutions (USACS). Dmand AI also links Dr. Mahajan to 1 more hospital and 1 urgent care center, 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. Nilesh Mahajan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahajan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St. John Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nilesh Mahajan is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Mahajan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mahajan is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Mahajan
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. Nilesh Mahajan's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Mahajan's median patient age at 65, with 51% women.
Dr. Mahajan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Nilesh Mahajan wrote 424 Medicare Part D claims in 2024
In 2024, Dr. Mahajan wrote 424 Medicare Part D claims for 79 patients. 73% of them were for generic drugs. CMS names the drug for 195 of them, across 10 drugs with 11 or more claims each, at $73,758 in total drug cost.
Dr. Mahajan's Part D claims by kind of drug, 2024
- Generic310 claims73%
- Brand-name and other114 claims27%
Dr. Mahajan'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. Mahajan's Part D claims, 2024
- Antibiotics3%11 of 424 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. Nilesh Mahajan takes part in Medicare
Dr. Mahajan 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Nilesh Mahajan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Nilesh Mahajan
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. Nilesh Mahajan's NPI number?
Dr. Nilesh Mahajan's NPI number is 1568195865. It was assigned on July 5, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Nilesh Mahajan?
Dr. Nilesh Mahajan is an internist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nilesh Mahajan practice?
Dr. Mahajan practices at 1923 South Utica Avenue, Tulsa, OK 74104. Dr. Mahajan's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. Dmand AI also links Dr. Mahajan to 1 hospital and 1 urgent care center.
What is Dr. Nilesh Mahajan's office phone number?
The practice phone on file for Dr. Mahajan is (918) 744-2296.
What is Dr. Nilesh Mahajan's medical license number?
Dr. Mahajan holds Oklahoma license 44996.
Which hospitals is Dr. Nilesh Mahajan affiliated with?
Dr. Mahajan practices at Ascension St. John Medical Center in Tulsa, Oklahoma. Dr. Mahajan is also affiliated with Ascension St. John Jane Phillips Medical Center. Dmand AI links Dr. Mahajan to 1 more hospital.
What medical group is Dr. Nilesh Mahajan part of?
Dr. Mahajan is linked to US Acute Care Solutions (USACS).
Does Dr. Nilesh Mahajan accept Medicare?
Yes. CMS lists Dr. Mahajan as accepting Medicare assignment.
What drugs does Dr. Nilesh Mahajan prescribe most?
In 2024 Medicare Part D data, Dr. Mahajan's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
How long has Dr. Nilesh Mahajan been practicing?
Dr. Mahajan graduated from medical school in 2021, 5 years ago.
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