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Psychologist - Clinicals in La Mesa, CA

Browse 35 Psychologist - Clinical providers listed in NPPES with a practice address in La Mesa, California.

35 Healthcare Providers

How La Mesa compares with the U.S.

La Mesa has 58 clinicians in Psychologist - Clinical per 100,000 residents, 2.9 times the U.S. rate of 20.

That is 35 active clinicians in Psychologist - Clinical with a practice address in La Mesa, for a population of 60,797.

The California rate is 32 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

92% of clinicians in Psychologist - Clinical in La Mesa listed in the CMS Medicare file (11 of 12) accept Medicare assignment. That is similar to the California share of 91%.

Only 12 of 35 active clinicians in Psychologist - Clinical in La Mesa appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

50% of clinicians in Psychologist - Clinical in La Mesa listed in the CMS Medicare file (6 of 12) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 50%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Psychologist - Clinical Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Psychologist - Clinical practitioners in La Mesa, CA

Source: CMS PECOS
PECOS Enrolled Specialists 12 In La Mesa, CA
Part B Lab & Imaging Eligible 13 Diagnostic Referrals
DME Ordering Eligible 14 Durable Medical Equipment
Home Health Agency Referrals 0 HHA Ordering Eligible
Showing 1โ€“20 of 35 providers
With recent CMS data first, then Aโ€“Z

Dr. David E. Duffy , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment
8787 Center Dr, La Mesa, CA 919423034
Phone: 8002578715
NPI Identifier 1326244955
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Dr. Stacy Kim Johnston , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4730 Palm Ave, 202, La Mesa, CA 919415266
Phone: 6197787215
NPI Identifier 1063569135
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Dr. Sheldon Z Kramer , PhD

Psychologist - Clinical

Active NPI Status
7777 Alvarado Rd, Ste 282, La Mesa, CA 919413616
Phone: 6192914465
NPI Identifier 1508992702
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Dr. Hugh D. Pates , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8787 Center Dr, La Mesa, CA 919423034
Phone: 8002578715
NPI Identifier 1457468233
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Dr. Kristin M Persson , PsyD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment
8312 University Ave, La Mesa, CA 919429323
Phone: 6198552344
NPI Identifier 1376851105
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Dr. Leslie Jean Bennett Thayer , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment
8355 La Mesa Blvd, La Mesa, CA 919429249
Phone: 6193544423
NPI Identifier 1316004914
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Dr. Georges Alexandre Tichy , PsyD

Psychologist - Clinical

Active NPI Status
8787 Center Dr, La Mesa, CA 919423034
Phone: 8002578715
NPI Identifier 1154346070
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Dr. Carol N. Arpaci , PsyD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
8029 La Mesa Blvd, La Mesa, CA 919416434
Phone: 6196680600
NPI Identifier 1023296324
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Dr. John S Bartholow , PhD

Psychologist - Clinical

Active NPI Status
7777 Alvarado Rd # 278, La Mesa, CA 919413616
Phone: 6199947862
NPI Identifier 1134247919
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Dr. Charles Robert Bilbrey , PhD

Psychologist - Clinical

Active NPI Status
8029 La Mesa Blvd, La Mesa, CA 919416434
Phone: 8004242686
NPI Identifier 1598935116
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Dr. Darrell L. Broaddus , PhD

Psychologist - Clinical

Active NPI Status
8029 La Mesa Blvd, Suite A, La Mesa, CA 919416434
Phone: 6196680600
NPI Identifier 1265616973
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James L. Bull

Psychologist - Clinical

Active NPI Status
8787 Center Drive, La Mesa, CA 919423034
Phone: 8002578715
NPI Identifier 1922194703
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Dr. Sharon M Colgan , PhD

Psychologist - Clinical

Active NPI Status
5575 Lake Park Way, #114, La Mesa, CA 919421669
Phone: 6194660656
NPI Identifier 1881704484
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Dr. Jacquelyn Ashley Corvan Helmer , PhD

Psychologist - Clinical

Active NPI Status
5360 Jackson Dr Ste 220-C, La Mesa, CA 919426002
Phone: 6194398479
NPI Identifier 1255820221
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Dr. Karen Ann Cross , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5480 Baltimore Dr, Suite 103, La Mesa, CA 919422020
Phone: 8582291282
NPI Identifier 1568550234
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Dr. Kristie L Earnheart , PhD

Psychologist - Clinical

Active NPI Status
4700 Spring St, #220, La Mesa, CA 919415263
Phone: 6196673380
NPI Identifier 1528257334
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Dr. Margaret Ann Edel , PhD

Psychologist - Clinical

Active NPI Status
7589 El Cajon Blvd, La Mesa, CA 919427695
Phone: 6199727760
NPI Identifier 1700080132
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Dr. Marykay Fisher , PsyD

Psychologist - Clinical

Active NPI Status
8080 La Mesa Blvd, Suite 112, La Mesa, CA 919420377
Phone: 7152221235
NPI Identifier 1992889281
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Dr. Cody L Gustaveson , PhD

Psychologist - Clinical

Active NPI Status Accepts Medicare Assignment
8881 Fletcher Pkwy Ste 350-360, La Mesa, CA 919423134
Phone: 8582791223
NPI Identifier 1790303451
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Dr. John Robert-Clyde Helmer , PsyD, LCSW

Psychologist - Clinical

Active NPI Status
5360 Jackson Dr Ste 220-C, La Mesa, CA 919426002
Phone: 6194398479
NPI Identifier 1093122608
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Frequently Asked Questions about Psychologist - Clinical in La Mesa

How do I check a Psychologist - Clinical practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.