Mark Aaron Gapen, PhD
- Affiliated sites
- 4
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 30 Locust Street, Northampton, MA 01060
- Practice phone
- Call (413) 582-2151
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cooley Dickinson Hospital - Behavioral Health
Psychiatric Inpatient Facility · Northampton, Massachusetts
Find Mark Gapen'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.
Mark Aaron Gapen is a psychologist in Northampton, Massachusetts
Mark Gapen practices at Cooley Dickinson Hospital - Behavioral Health in Northampton, Massachusetts.
Mark Gapen's NPI, 1467786616, was assigned on September 21, 2009. Mark Gapen graduated from Emory University School of Medicine in 2009.
- NPI
- 1467786616NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719146943
- NPI enumeration date
- September 21, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (413) 582-2151
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Aaron Gapen practices at Cooley Dickinson Hospital - Behavioral Health in Northampton, Massachusetts
Mark Gapen's primary practice is Cooley Dickinson Hospital - Behavioral Health, at 30 Locust Street, Northampton, MA 01060. The practice phone is (413) 582-2151.
- Cooley Dickinson Hospital - Behavioral Health30 Locust Street, Northampton, MA 01060Phone(413) 582-2151
Source: Dmand AI Affiliation Data
Mark Aaron Gapen is affiliated with 4 sites of care
Mark Gapen's primary practice is Cooley Dickinson Hospital - Behavioral Health in Northampton, Massachusetts. Dmand AI also links Mark Gapen to 1 home health agency, 1 hospice and 1 imaging 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 Mark Aaron Gapen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Gapen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cooley Dickinson Hospital - Behavioral Health | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Mark Aaron Gapen is one of 605 psychologists in Massachusetts
Psychologist is Mark Gapen's primary specialty in the NPI Registry, under taxonomy code 103T00000X.
Specialties and state licenses
- PsychologistPrimary
Psychologists near Mark Gapen
Counts of psychologists 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
Mark Aaron Gapen's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Mark Gapen's median patient age at 40, with 0% women.
Mark Gapen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
How Mark Aaron Gapen takes part in Medicare
Mark Gapen 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)
Mark Aaron Gapen graduated from Emory University School of Medicine
Mark Gapen graduated from Emory University School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mark Aaron Gapen'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 |
| 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 Mark Aaron Gapen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Aaron Gapen's NPI number?
Mark Aaron Gapen's NPI number is 1467786616. It was assigned on September 21, 2009, and it is active in the NPI Registry.
What does Mark Aaron Gapen specialize in?
Mark Aaron Gapen is a psychologist in Northampton, Massachusetts. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does Mark Aaron Gapen practice?
Mark Gapen practices at 30 Locust Street, Northampton, MA 01060. Mark Gapen's primary practice is Cooley Dickinson Hospital - Behavioral Health in Northampton, Massachusetts. Dmand AI also links Mark Gapen to 1 home health agency, 1 hospice and 1 imaging center.
What is Mark Aaron Gapen's office phone number?
The practice phone on file for Mark Gapen is (413) 582-2151.
Does Mark Aaron Gapen accept Medicare?
Yes. CMS lists Mark Gapen as accepting Medicare assignment.
Where did Mark Aaron Gapen go to medical school?
Mark Gapen graduated from Emory University School of Medicine in 2009.
How long has Mark Aaron Gapen been practicing?
Mark Gapen graduated from medical school in 2009, 17 years ago.
Selling to psychologist practices?
See psychologists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card