Dennis Malcolm Henderson, PhD
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 12 Gildare Dr, East Northport, NY 11731-3223
- Practice phone
- Call (631) 368-8502
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dennis M Henderson Psychological Services PC
Physician office · East Northport, New York
Find Dennis Henderson'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.
Dennis Malcolm Henderson is a psychologist in East Northport, New York
Dennis Henderson practices at Dennis M Henderson Psychological Services PC in East Northport, New York.
Dennis Henderson's NPI, 1639287758, was assigned on August 28, 2006. Dennis Henderson holds New York license 011792-1.
- NPI
- 1639287758NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648262014
- NPI enumeration date
- August 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 368-8502
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dennis Malcolm Henderson practices at Dennis M Henderson Psychological Services PC in East Northport, New York
Dennis Henderson's primary practice is Dennis M Henderson Psychological Services PC, at 12 Gildare Dr, East Northport, NY 11731-3223. The practice phone is (631) 368-8502.
- Dennis M Henderson Psychological Services PC12 Gildare Dr, East Northport, NY 11731-3223Phone(631) 368-8502
Source: Dmand AI Affiliation Data
Dennis Malcolm Henderson is affiliated with 1 site of care
Dennis Henderson's primary practice is Dennis M Henderson Psychological Services PC in East Northport, New York.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dennis Malcolm Henderson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dennis Henderson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dennis M Henderson Psychological Services PC | Available with a free account |
Source: Dmand AI Technology Install Data
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Dennis Malcolm Henderson is one of 1,198 psychologists in New York
Psychologist is Dennis Henderson's primary specialty in the NPI Registry, under taxonomy code 103T00000X. Dennis Henderson is licensed in New York.
Specialties and state licenses
- Psychologist, New YorkPrimary
Psychologists near Dennis Henderson
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
Dennis Malcolm Henderson's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dennis Henderson's median patient age at 76, with 0% women.
Dennis Henderson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dennis Malcolm Henderson offers telehealth to Medicare patients
Dennis Henderson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dennis Henderson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Dennis Malcolm Henderson'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 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) |
| 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 Dennis Malcolm Henderson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dennis Malcolm Henderson's NPI number?
Dennis Malcolm Henderson's NPI number is 1639287758. It was assigned on August 28, 2006, and it is active in the NPI Registry.
What does Dennis Malcolm Henderson specialize in?
Dennis Malcolm Henderson is a psychologist in East Northport, New York. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does Dennis Malcolm Henderson practice?
Dennis Henderson practices at 12 Gildare Dr, East Northport, NY 11731-3223. Dennis Henderson's primary practice is Dennis M Henderson Psychological Services PC in East Northport, New York.
What is Dennis Malcolm Henderson's office phone number?
The practice phone on file for Dennis Henderson is (631) 368-8502.
What is Dennis Malcolm Henderson's medical license number?
Dennis Henderson holds New York license 011792-1.
Does Dennis Malcolm Henderson accept Medicare?
Yes. CMS lists Dennis Henderson as accepting Medicare assignment.
Does Dennis Malcolm Henderson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dennis Henderson as offering telehealth services.
How long has Dennis Malcolm Henderson been practicing?
Dennis Henderson graduated from medical school in 1990, 36 years ago.
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