Laura Sheridan, PH.D.
Laura Sheridan, PH.D. is a Psychologist in Merrimack, NH, registered under NPI 1003071044.
Getting there
Here is what surrounds this office in Merrimack, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 0.20 mi away. If you arrive early, there is a coffee shop 0.36 mi away.
Getting here and what is nearby
Parking 520 ft ~2 min
Restaurant The Common Man 537 ft ~3 min
Restaurant Dunkin' 608 ft ~3 min
308 Daniel Webster Highway, Merrimack 03054
Mo-Sa 04:00-23:00; Su 05:00-23:00
Parking 749 ft ~3 min
Restaurant Don Ramon 759 ft ~3 min
6 Whitney Street, Merrimack 03054
Mo-Th 11:00-22:00; Fr,Sa 11:00-23:00; Su 11:00-21:00
Parking 0.20 mi ~4 min
Hotel WoodSpring Suites Nashua Merrimack 0.34 mi ~7 min
2 Executive Park Drive, Merrimack 03054
Coffee King Kone 0.36 mi ~8 min
336 Daniel Webster Highway, Merrimack 03054
Convenience Merrimack Food Mart 0.36 mi ~8 min
1 Continental Boulevard, Merrimack 03054
Gas station Gulf 0.36 mi ~8 min
1 Continental Boulevard, Merrimack 03054
Hotel Holiday Inn Express 0.41 mi ~9 min
Convenience Garrett's Family Market 0.43 mi ~9 min
1 Peach Tree Lane, Merrimack 03054
Gas station Rapid Refill 0.43 mi ~9 min
Grocery Shaw's 0.52 mi ~11 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 10341 | MA | Psychologist |
| 6301014002 | MI | Psychologist |
| 1291 | NH | Psychologist primary |
Licences are recorded in 3 states: MA, MI, NH. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 3 states
This provider holds licences in 3 states: Massachusetts, Michigan and New Hampshire. The practice address on file is in Merrimack, NH, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
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
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 103T00000X | Psychologist | 10341 | MA | |
| 103T00000X | Psychologist | 6301014002 | MI | |
| 103T00000X | Psychologist | 1291 | NH | primary |
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 | 1003071044 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 18, 2008 |
| Last updated | Apr 14, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PH.D. |
| Practice address |
22 GREELEY ST STE 9D Merrimack, NH 03054 (603) 365-4989 |
| Other names |
Laura Pierce Former Legal Business Name |
| Other identifiers |
3091335
· Medicaid (NH) |
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 | 0 | 7 | 1 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 2 | 0 | 8 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.