Devon Harrison, PHD
Devon Harrison, PHD is a Psychologist in New York, NY, registered under NPI 1003477589.
Getting there
Here is what surrounds this office in New York, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 1,022 ft away. The nearest transit stop is 400 ft away, served by Madison Avenue & East 40th Street. A pharmacy sits 0.34 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 647 ft away.
Getting here and what is nearby
Hotel Hyatt Centric 39th & 5th New York 102 ft ~1 min
Coffee The Library Café by Amy's Bread 224 ft ~1 min
Restaurant Mad Dog & Beans Mexican Cantina 189 ft ~1 min
5 East 38th Street, New York 10016
Su-Th 12:00-22:00; We 12:00-23:00; Th-Sa 12:00-00:00
Transit 5th Avenue & West 39th Street 266 ft ~2 min
Restaurant Chipotle 262 ft ~1 min
Restaurant Norikoh 274 ft ~2 min
Transit 5th Avenue & East 39th Street 295 ft ~2 min
Hotel Courtyard New York Manhattan/Fifth Avenue 362 ft ~2 min
Pharmacy CVS Pharmacy 392 ft ~2 min
420 5th Avenue
Mo-Su 07:00-24:00 open "Store" || Mo-Fr 09:00-19:00; Sa 10:00-18:00; Su 11:00-17:00
Transit Madison Avenue & East 40th Street 400 ft ~2 min
Hotel Pestana Park Avenue 451 ft ~2 min
Grocery Sunrise Mart 509 ft ~2 min
Coffee Starbucks 643 ft ~3 min
Coffee Taylor St. Baristas 647 ft ~3 min
33 east 40th street
Parking Centerpark East 39th Street Parking Garage 632 ft ~3 min
Parking Centerpark East 38th Street Parking Garage 637 ft ~3 min
Parking 1,022 ft ~4 min
Convenience Teso Mini 0.25 mi ~5 min
Pharmacy Pasteur Pharmacy 0.25 mi ~6 min
53 East 34th Street, New York 10016
Mo-Fr 08:00-17:00, Sa 10:00-15:00
Convenience 39 Deli & Convenience Store 0.26 mi ~6 min
Convenience In A New York Minute Grab N' Gi 0.27 mi ~6 min
974 6th Avenue, 10018
Grocery Hashi Market 0.27 mi ~6 min
108 West 39th Street, New York 10018
Mo-Su 08:00-21:00
Grocery Whole Foods Market 0.28 mi ~6 min
1095 Avenue of the Americas, New York 10036
Mo-Su 08:00-22:00
Pharmacy CVS Pharmacy 0.34 mi ~7 min
320 5th Avenue, 10001
07:00-24:00 open "Store" || Mo-Fr 08:00-20:00; Sa,Su 10:00-17:00 open "Pharmacy"
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Psychologist covers
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public. NUCC Health Care Provider Taxonomy, code 103T00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003477589 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 25, 2019 |
| Last updated | Jun 25, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PHD |
| Practice address |
6 E 39TH ST STE 800 New York, NY 10016 (708) 892-0008 |
| Mailing address |
49 W 84TH ST APT 3 New York, NY 10024 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 7 | 7 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 5 | 5 | 7 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.