2026 data CMS NPPES NUCC Taxonomy

Doctors in Atascadero, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

962
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
106 providers
California
State
CA

962 healthcare providers across 20 specialties

Atascadero, California appears in the CMS National Plan and Provider Enumeration System with 962 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 Atascadero - 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 Atascadero practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Atascadero is weighted toward Behavior Technician (106 clinicians, followed by Clinical Psychologist with 81 and Addiction (Substance Use Disorder) Counselor with 73). 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, Atascadero reports roughly 2.5 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.

Within California, Atascadero ranks #186 of 805 cities tracked by provider count, accounting for 0.1% of the state's registered providers. Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Atascadero practice address, a coverage gap Atascadero patients typically fill by traveling to a larger nearby hub.

For Atascadero 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.

962
Providers
20
Specialties
#186
of 805 CA cities
0.1%
of CA providers
2.5
Per 100K (state)

Which specialties are most common in Atascadero

Behavior Technician 106
Clinical Psychologist 81
Addiction (Substance Use Disorder) Counselor 73
Marriage & Family Therapist 60
Psychiatry Physician 47
Mental Health Counselor 43
Clinical Social Worker 33
Pharmacist 31
Family Nurse Practitioner 28
Speech-Language Pathologist 27
Forensic Psychiatry Physician 26
Chiropractor 26
Psychologist 26
Behavior Analyst 26
Physical Therapist 22
Counselor 21
Family Medicine Physician 19
Student in an Organized Health Care Education/Training Program 15
General Practice Dentistry 13
Internal Medicine Physician 12

Healthcare Providers (Page 17)

Name
Jeffrey Shepherd, D.D.S.
General Practice Dentistry
Breanna Sheppard, SUDRC
Addiction (Substance Use Disorder) Counselor
Karen Sheppard, PHD
Clinical Neuropsychologist
Michael Sherman, PTA
Physical Medicine & Rehabilitation Physician
Georgina Shimek
Speech-Language Pathologist
Lindsay Siddons
Mental Health Counselor
Raymond Siddons, MFT
Marriage & Family Therapist
Anup Sidhu, MD
Psychiatry Physician
Shayla Sieck
Behavior Technician
John Siemens, M.F.T.
Marriage & Family Therapist
Cristian Sierra, DMD
Dentist
Shirley Sigmund, M.A.
Speech-Language Pathologist
Jessica Silva
Behavior Technician
Alanna Sivils
Behavior Analyst
Tina Slane
Addiction (Substance Use Disorder) Counselor
Jana Slezakova, M.A.
Clinical Psychologist
Britney Small
Behavior Technician
Tyler Smalling, PHARMD
Pharmacist
Edward Smink
Mental Health Counselor
Alexis Smith
Student in an Organized Health Care Education/Training Program
Amy Smith, PSYD
Mental Health Counselor
Camille Smith
Counselor
Cynthia Smith, M.S., M.F.T.
Marriage & Family Therapist
Darren Smith, PSYD
Clinical Psychologist
Jennifer Smith, LCSW
Clinical Social Worker
Phillip Smith, N.P.
Registered Nurse
Scott Smith, PHD
Psychologist
Susan Smith, MD
Family Medicine Physician
Olivia Snelson
Speech-Language Pathologist
Patricia Snyder, MD
Family Medicine Physician
Ana Sobalvarro, LPCC
Mental Health Counselor
Daniel Solorio
Behavior Technician
Jonathan Sorbello
Mental Health Counselor
Heather Sorensen, CADC-CS, ICCS, SAP
Addiction (Substance Use Disorder) Counselor
Brooke Sorvig
Addiction (Substance Use Disorder) Counselor
Kyle Soucy, PHARMD
Ambulatory Care Pharmacist
Janee Speakman
Speech-Language Pathologist
Mary Spurgeon, RDMS
Sonography Radiologic Technologist
Kacee Stagg, RDN
Registered Dietitian
Ronald Staib, MD
Family Medicine Physician
Katherine Stamper
Clinical Psychologist
Martin Steed, M.D.
Psychiatry Physician
Alan Stehli, MS
Speech-Language Pathologist
Bernadette Stehly
Behavior Technician
Matthew Steiner, M.D.
Psychiatry Physician
Grant Stoll, PSY.D
Psychologist
Chad Stout, PHARM D
Pharmacist
Theron Stout, DDS
Pediatric Dentistry
Julie Stowasser, M.S., LMFT
Marriage & Family Therapist
Luke Stratigakes, DPT
Physical Therapist

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 Atascadero, CA?
There are 962 registered healthcare providers in Atascadero, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Atascadero?
The most common specialties in Atascadero are Behavior Technician, Clinical Psychologist, Addiction (Substance Use Disorder) Counselor, Marriage & Family Therapist, Psychiatry Physician. Behavior Technician has the most providers with 106.

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.

Compiled from official public sources by the PlainDoctor editorial team.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.