Dr. Diahann L. Seaman, MD
- Part D claims, 2016
- 11
- Hospital affiliations
- 1
- Industry payments
- $96
- Medical group
- 1
- State license
- 1
- Practice address
- 506 Malcolm X Blvd, New York, NY 10037
- Practice phone
- Call (212) 939-2027
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
NYC Health and Hospitals/Harlem
New York, New York
Find Dr. Seaman'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. Diahann L. Seaman is a gastroenterologist in New York, New York
Dr. Seaman practices at NYC Health and Hospitals/Harlem in New York, New York.
Dr. Seaman's NPI, 1841278017, was assigned on January 6, 2006. Dr. Seaman graduated from University of Rochester School of Medicine and Dentistry in 2001. Dr. Seaman holds New York license 248162.
- NPI
- 1841278017NPI Registry (opens in a new tab)
- NPI enumeration date
- January 6, 2006
- NPI status
- Active
- Practice phone
- (212) 939-2027
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Diahann L. Seaman practices at NYC Health and Hospitals/Harlem in New York, New York
Dr. Seaman's primary practice is NYC Health and Hospitals/Harlem, at 506 Malcolm X Blvd, New York, NY 10037 in New York County. The practice phone is (212) 939-2027.
- NYC Health and Hospitals/Harlem506 Malcolm X Blvd, New York, NY 10037 · New York CountyPhone(212) 939-2027
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Diahann L. Seaman is affiliated with 2 sites of care and 1 medical group
Dr. Seaman's primary practice is NYC Health and Hospitals/Harlem in New York, New York. Dr. Seaman is also affiliated with NYC Health + Hospitals/Jacobi. The medical group on file is Physician Affiliate Group of New York (PAGNY).
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. Diahann L. Seaman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Seaman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYC Health and Hospitals/Harlem | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Diahann L. Seaman is one of 1,583 gastroenterologists in New York
Gastroenterology is Dr. Seaman's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Seaman is licensed in New York.
Specialties and state licenses
- Gastroenterology, New YorkPrimary
Gastroenterologists near Dr. Seaman
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. Diahann L. Seaman's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Seaman's median patient age at 73, with 33% women.
Dr. Seaman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Diahann L. Seaman wrote 11 Medicare Part D claims in 2016
In 2016, Dr. Seaman wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $83 in total drug cost.
Dr. Seaman's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
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Dr. Diahann L. Seaman received $96 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Seaman from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $96.
Companies that paid Dr. Seaman the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Diahann L. Seaman graduated from University of Rochester School of Medicine and Dentistry
Dr. Seaman graduated from University of Rochester School of Medicine and Dentistry in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Diahann L. Seaman'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 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) |
| Industry payments | Open Payments (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. Diahann L. Seaman
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. Diahann L. Seaman's NPI number?
Dr. Diahann L. Seaman's NPI number is 1841278017. It was assigned on January 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Diahann L. Seaman?
Dr. Diahann L. Seaman is a gastroenterologist in New York, New York. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Diahann L. Seaman practice?
Dr. Seaman practices at 506 Malcolm X Blvd, New York, NY 10037. Dr. Seaman's primary practice is NYC Health and Hospitals/Harlem in New York, New York.
What is Dr. Diahann L. Seaman's office phone number?
The practice phone on file for Dr. Seaman is (212) 939-2027.
What is Dr. Diahann L. Seaman's medical license number?
Dr. Seaman holds New York license 248162.
Which hospitals is Dr. Diahann L. Seaman affiliated with?
Dr. Seaman is affiliated with NYC Health + Hospitals/Jacobi.
What medical group is Dr. Diahann L. Seaman part of?
Dr. Seaman is linked to Physician Affiliate Group of New York (PAGNY).
Where did Dr. Diahann L. Seaman go to medical school?
Dr. Seaman graduated from University of Rochester School of Medicine and Dentistry in 2001.
What drugs does Dr. Diahann L. Seaman prescribe most?
In 2016 Medicare Part D data, Dr. Seaman's most prescribed drugs by claims were Omeprazole.
Has Dr. Diahann L. Seaman received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Dr. Seaman from 1 company from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Diahann L. Seaman been practicing?
Dr. Seaman graduated from medical school in 2001, 25 years ago.
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