Madison Gabrielle Massey, PA-C
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2025
- Practice locations
- 2
- Practice address
- One Gustave L Levy Place, New York, NY 10029
- Practice phone
- Call (212) 241-7981
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Madison Massey'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.
Madison Gabrielle Massey is a physician assistant in New York, New York
Madison Massey practices at The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.
Madison Massey's NPI, 1013805688, was assigned on June 24, 2025. Madison Massey graduated from Wake Forest University School of Medicine in 2025. Madison Massey holds New York license 034183.
- NPI
- 1013805688NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264920503
- NPI enumeration date
- June 24, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 241-7981
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Madison Gabrielle Massey practices at 2 locations in New York, New York
Madison Massey's primary practice is The Mount Sinai Hospital, at One Gustave L Levy Place, New York, NY 10029 in New York County. The practice phone is (212) 241-7981. Madison Massey also practices at The Mount Sinai Hospital, 1 Gustave L Levy Pl, New York, NY 10029.
- The Mount Sinai HospitalPrimaryOne Gustave L Levy Place, New York, NY 10029 · New York CountyPhone(212) 241-7981
- The Mount Sinai Hospital1 Gustave L Levy Pl, New York, NY 10029 · New York CountyPhone(212) 256-2904
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Madison Gabrielle Massey is affiliated with 3 sites of care and 2 medical groups
Madison Massey's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Madison Massey to 2 more group practices and clinics 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 Madison Gabrielle Massey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Madison Massey practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
| +2 more sites and 1 medical group | 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 Mount Sinai Health System and 6.2K+ hospitals, with verified contacts in the same login.
Madison Gabrielle Massey is one of 11,456 physician assistants in New York
Physician assistant is Madison Massey's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Madison Massey is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Madison Massey
Counts of physician assistants 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
Madison Gabrielle Massey's patients have a median age of 50
Across all payers, Dmand AI patient panel data puts Madison Massey's median patient age at 50, with 57% women.
Madison Massey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
How Madison Gabrielle Massey takes part in Medicare
Madison Massey 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)
Madison Gabrielle Massey graduated from Wake Forest University School of Medicine
Madison Massey graduated from Wake Forest University School of Medicine in 2025.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Madison Gabrielle Massey'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Madison Gabrielle Massey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Madison Gabrielle Massey's NPI number?
Madison Gabrielle Massey's NPI number is 1013805688. It was assigned on June 24, 2025, and it is active in the NPI Registry.
What does Madison Gabrielle Massey specialize in?
Madison Gabrielle Massey is a physician assistant in New York, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Madison Gabrielle Massey practice?
Madison Massey practices at One Gustave L Levy Place, New York, NY 10029. Madison Massey also practices at 1 Gustave L Levy Pl, New York, NY 10029. Madison Massey's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. Dmand AI also links Madison Massey to 2 group practices and clinics and 1 medical group.
What is Madison Gabrielle Massey's office phone number?
The practice phone on file for Madison Massey is (212) 241-7981.
What is Madison Gabrielle Massey's medical license number?
Madison Massey holds New York license 034183.
Which hospitals is Madison Gabrielle Massey affiliated with?
Madison Massey practices at The Mount Sinai Hospital in New York, New York.
What medical group is Madison Gabrielle Massey part of?
Madison Massey is linked to Mount Sinai Institute for Liver Medicine. Dmand AI links Madison Massey to 1 more medical group.
Does Madison Gabrielle Massey accept Medicare?
Yes. CMS lists Madison Massey as accepting Medicare assignment.
Where did Madison Gabrielle Massey go to medical school?
Madison Massey graduated from Wake Forest University School of Medicine in 2025.
How long has Madison Gabrielle Massey been practicing?
Madison Massey graduated from medical school in 2025, 1 years ago.
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