2026 data CMS NPPES NUCC Taxonomy

Doctors in Merced, CA

Active healthcare providers in Merced sourced from the CMS NPPES weekly file — no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

2,716
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
327 providers
California
State
CA

2,716 healthcare providers across 20 specialties

Merced, California appears in the CMS National Plan and Provider Enumeration System with 2,716 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Merced — physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Merced practice location on file.

The provider mix in Merced is weighted toward Behavior Technician (327 clinicians, followed by Case Manager/Care Coordinator with 271 and Mental Health Counselor with 173). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Merced reports roughly 7 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Merced patients, this directory is most useful as a starting shortlist — searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

2,716
Providers
20
Specialties
7
Per 100K (state)

Which specialties are most common in Merced

Behavior Technician 327
Case Manager/Care Coordinator 271
Mental Health Counselor 173
Licensed Vocational Nurse 149
Addiction (Substance Use Disorder) Counselor 132
Rehabilitation Practitioner 129
Counselor 100
Student in an Organized Health Care Education/Training Program 92
Family Medicine Physician 85
Clinical Social Worker 82
Pharmacist 64
Family Nurse Practitioner 62
Professional Counselor 61
Registered Nurse 60
Peer Specialist 59
Marriage & Family Therapist 56
Community Health Worker 42
General Practice Dentistry 40
Dentist 40
Physician Assistant 39

Healthcare Providers (Page 30)

Name
RAJIV MARAJ, M.D.
Internal Medicine Physician
GRACE MARANIA, MD
Family Medicine Physician
VICTOR MARCHINI, LMFT
Marriage & Family Therapist
KRISTINA MARGUERITA
Doula
VALERIA MARIN
Rehabilitation Practitioner
KARLI MARINO
Case Manager/Care Coordinator
TRISHA MARINO
Case Manager/Care Coordinator
TODD MARION
Case Manager/Care Coordinator
ALEXIS MARISCAL
Rehabilitation Practitioner
ARLENE MARISCAL
Case Manager/Care Coordinator
STEVEN MARON, M.D.
Emergency Medicine Physician
LETICIA MARQUEZ
Driver
SHEILA MARQUEZ
Behavior Technician
WENDELA MARSH, MA, BCBA, LEP
Pastoral Counselor
JENNIFER MARSHALL, RN
Adult Psychiatric/Mental Health Registered Nurse
MICHAEL MARSHALL, D.D.S.
General Practice Dentistry
TONI MARSHALL
Mental Health Counselor
KIRSTEN MARTIN
Peer Specialist
SHAQUENTHA MARTIN
Licensed Vocational Nurse
ADRIANA MARTINEZ
Mental Health Counselor
ALFREDO MARTINEZ
Community Health Worker
ALLYSA MAE MARTINEZ
Licensed Vocational Nurse
ANNABEL MARTINEZ
Addiction (Substance Use Disorder) Counselor
BREANNE MARTINEZ
Behavior Analyst
CASSEY MARTINEZ
Counselor
CRYSTAL MARTINEZ, LVN
Licensed Vocational Nurse
CYNTHIA MARTINEZ
Case Manager/Care Coordinator
GUSTAVO MARTINEZ
Counselor
LINDSEY MARTINEZ
Behavior Technician
MALENI MARTINEZ
Licensed Vocational Nurse
MARISOL MARTINEZ
School Social Worker
MARK MARTINEZ
Behavior Analyst
MORGAN MARTINEZ
Case Manager/Care Coordinator
RYAN MARTINEZ, PT
Physical Therapist
CASSANDRA MARTINEZ ALVAREZ
Behavior Technician
JOSUE MARTINEZ MARQUEZ
Case Manager/Care Coordinator
SERGIO MARTINEZ-CASILLAS
Professional Counselor
STEPHANIE MARTINEZ-PIUSER
School Psychologist
THALIA MARTINEZ-SANTOYO
Behavior Technician
BRIAN MARUYAMA, PH.D.
Mental Health Counselor
MICHAEL MARUYAMA, AMFT
Mental Health Counselor
ANTHONY MASADEY, LPT
Licensed Psychiatric Technician
PAULA MASON
Case Manager/Care Coordinator
JUAN MATA
Mental Health Counselor
KRISTEN MATA, LMFT
Marriage & Family Therapist
LAURIE MATA, WHNP
Women's Health Nurse Practitioner
ROXANNE MATA
Addiction (Substance Use Disorder) Counselor
JESSICA MATLOCK-JIMENEZ
Licensed Vocational Nurse
CARRIE MATTMILLER, LVN
Licensed Vocational Nurse
LYSSABETH MATTOON, PH.D.
Clinical Psychologist

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Merced, CA?
There are 2,716 registered healthcare providers in Merced, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Merced?
The most common specialties in Merced are Behavior Technician, Case Manager/Care Coordinator, Mental Health Counselor, Licensed Vocational Nurse, Addiction (Substance Use Disorder) Counselor. Behavior Technician has the most providers with 327.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.