Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK R. LARSON PH.D.
NPI 1124088208
Psychologist - Clinical in Rochester, NY

Q: What is Mark Larson's NPI number?

The NPI number for Mark Larson is 1124088208. It was assigned to this individual provider in the NPPES registry on March 24, 2006.

Q: What is Mark Larson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Mark Larson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 24, 2006PECOS Enrolled

130 ALLENS CREEK RD, ROCHESTER, NY 14618(585) 473-5810(585) 473-5193 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mark R. Larson Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK R. LARSON PH.D. (NPI 1124088208) is an individual clinical provider in Rochester, New York, licensed in New York (013650) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1124088208

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameMARK R. LARSONCredential: PH.D.

Location Address130 ALLENS CREEK RDRochester, NY 14618-3305

Mailing Address130 Allens Creek RdRochester, NY 14618-3305 · (585) 473-5810 · Fax (585) 473-5193

Phone(585) 473-5810

Fax(585) 473-5193

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateMarch 24, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1124088208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in NY · 013650

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

130 ALLENS CREEK RD, Rochester, NY 14618

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Other Identifiers 3

Other106063FCNY · Preferred Care

Other7043329NY · Aetna

OtherS13650-7WNY · Worker's Compensation

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark R. Larson Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5799957114

PECOS Enrollment IDI20111007000210

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$166.88 typical visit price

range $54.87 – $166.88

Typical copayment $41.72 (range $13.71 – $41.72)

Most-billed visit code 99205

Established Patient

$97.08 typical visit price

range $17.54 – $136.14

Typical copayment $24.27 (range $4.38 – $34.03)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARY ELIZABETH SPAGNOLA-MARSH PH.D

Psychologist (Clinical)

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 465-2017

DR. ELLEN NAKHNIKIAN PH. D.

Psychologist

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 473-5810

DR. KATHLEEN TRACY WATSON PH.D.

Psychologist

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 473-5810

MRS. KRISTIE LYNNE JEWITT M.S., LMFT

Marriage & Family Therapist

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 244-4161

MR. FRANK GERARD BARONE LCSW-R

Social Worker (Clinical)

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 271-0350

DR. AMBER IRENE KESHISHIAN PH.D.

Psychologist (Clinical)

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 244-4161

MR. JOSEPH M. WEBER LCSW-R

Social Worker (Clinical)

130 ALLENS CREEK RD, SUITE 100
ROCHESTER, NY 14618

Monroe County (585) 271-5610

MS. CHARLENE GRETA GOLDBLATT MSW

Social Worker (Clinical)

130 ALLENS CREEK RD
ROCHESTER, NY 14618

Monroe County (585) 473-5810

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Larson's NPI number?

The NPI number for Mark Larson is 1124088208. It was assigned to this individual provider in the NPPES registry on March 24, 2006.

Where is Mark Larson located?

Mark Larson practices at 130 Allens Creek Rd, Rochester, NY 14618. The listed phone number is (585) 473-5810.

What is Mark Larson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Mark Larson enrolled in Medicare?

Yes. Mark Larson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mark Larson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.