Dr. Nicholas James Mahan, MD
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 15
- Hospital affiliations
- 1
- Medical groups
- 3
- State license
- 1
- Practice address
- 4802 Tenth Avenue, Brooklyn, NY 11219
- Practice phone
- Call (718) 283-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mahan'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. Nicholas James Mahan is a psychiatrist in Brooklyn, New York
Dr. Mahan practices at Maimonides Medical Center in Brooklyn, New York, part of Maimonides Medical Center.
Dr. Mahan's NPI, 1881157923, was assigned on April 6, 2019. Dr. Mahan graduated from Kansas City University of Physicians and Surgeons in 2019. Dr. Mahan holds District of Columbia license MD048694.
- NPI
- 1881157923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729464243
- NPI enumeration date
- April 6, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 283-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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. Nicholas James Mahan practices at Maimonides Medical Center in Brooklyn, New York
Dr. Mahan's primary practice is Maimonides Medical Center, at 4802 Tenth Avenue, Brooklyn, NY 11219 in Kings County. The practice phone is (718) 283-6000.
- Maimonides Medical Center4802 Tenth Avenue, Brooklyn, NY 11219 · Kings CountyPhone(718) 283-6000
Source: Dmand AI Affiliation Data
Dr. Nicholas James Mahan is affiliated with 1 site of care and 3 medical groups
Dr. Mahan's primary practice is Maimonides Medical Center in Brooklyn, New York, part of Maimonides Medical Center. The medical group on file is Maimonides Medical Center. Dmand AI also links Dr. Mahan to 2 more medical groups, 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. Nicholas James Mahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Maimonides Medical Center | Available with a free account |
| +2 medical groups | 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 Maimonides Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nicholas James Mahan is one of 4,448 psychiatrists in New York
Psychiatry is Dr. Mahan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Mahan is licensed in District of Columbia.
Specialties and state licenses
- Psychiatry, District of ColumbiaPrimary
Psychiatrists near Dr. Mahan
Counts of psychiatrists 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. Nicholas James Mahan treated 15 Medicare patients in 2024, average age 59
CMS counts 15 Medicare patients who saw Dr. Mahan in 2024. The largest group is 85 and over, with 0 patients. 75% of them have anxiety, and 75% have schizophrenia and other psychoses. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mahan's median patient age at 53, with 58% women.
Dr. Mahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Mahan's Medicare patients, 2024
- Anxiety75%
- Schizophrenia and other psychoses75%
- High blood pressure73%
- Mood disorders73%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women58%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas James Mahan wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Mahan wrote 15 Medicare Part D claims. 87% of them were for generic drugs. They cover 2 drugs, with $530 in total drug cost. In 2022, CMS named 73 claims across 5 drugs.
Dr. Mahan's Part D claims by kind of drug, 2024
- Generic13 claims87%
- Brand-name and other2 claims13%
Dr. Mahan's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 732023: 2270%
Drugs named by CMS: 2 in 2023, 5 in 2022.
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. Nicholas James Mahan takes part in Medicare
Dr. Mahan 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
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Dr. Nicholas James Mahan graduated from Kansas City University of Physicians and Surgeons
Dr. Mahan graduated from Kansas City University of Physicians and Surgeons in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nicholas James Mahan'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 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Nicholas James Mahan
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. Nicholas James Mahan's NPI number?
Dr. Nicholas James Mahan's NPI number is 1881157923. It was assigned on April 6, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas James Mahan?
Dr. Nicholas James Mahan is a psychiatrist in Brooklyn, New York. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Nicholas James Mahan practice?
Dr. Mahan practices at 4802 Tenth Avenue, Brooklyn, NY 11219. Dr. Mahan's primary practice is Maimonides Medical Center in Brooklyn, New York, part of Maimonides Medical Center. Dmand AI also links Dr. Mahan to 2 medical groups.
What is Dr. Nicholas James Mahan's office phone number?
The practice phone on file for Dr. Mahan is (718) 283-6000.
What is Dr. Nicholas James Mahan's medical license number?
Dr. Mahan holds District of Columbia license MD048694.
Which hospitals is Dr. Nicholas James Mahan affiliated with?
Dr. Mahan practices at Maimonides Medical Center in Brooklyn, New York.
What medical group is Dr. Nicholas James Mahan part of?
Dr. Mahan is linked to Maimonides Medical Center. Dmand AI links Dr. Mahan to 2 more medical groups.
Does Dr. Nicholas James Mahan accept Medicare?
Yes. CMS lists Dr. Mahan as accepting Medicare assignment.
How many Medicare patients does Dr. Nicholas James Mahan see?
CMS counts 15 Medicare patients who saw Dr. Mahan in 2024, with an average age of 59.
Where did Dr. Nicholas James Mahan go to medical school?
Dr. Mahan graduated from Kansas City University of Physicians and Surgeons in 2019.
What drugs does Dr. Nicholas James Mahan prescribe most?
In 2023 Medicare Part D data, Dr. Mahan's most prescribed drugs by claims were Bupropion XL and Trazodone HCl.
How long has Dr. Nicholas James Mahan been practicing?
Dr. Mahan graduated from medical school in 2019, 7 years ago.
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