Doctors and health care providers in Ione, CA
94 individual NPPES records list a Ione practice address, 500th of 812 California cities. The largest group is clinical social worker: 14, 15% of the city's records, against 3% across California.
The 8 largest groups in Ione
Source: CMS NPPES primary taxonomy, loaded Aug 27, 2026.
Ione in California
- Rank in California500th of 812 cities by records
- Share of the state<0.1% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups38.3% of all records
- Clinical Social Worker rank11th of the 10 California cities with the most
Compared with California as a whole, Ione has 12× the state's share of clinical psychologist records.
Providers in Ione, alphabetically
- Troy AdkinsPhysician Assistant1699697581
- Omoniyi Akintola, PA CMedical Physician Assistant1548443328
- Trinity AlvarezClinical Social Worker1457053944
- Geneva Amas, LCSWClinical Social Worker1902045222
- Carol Anderson, PSY.D.Clinical Psychologist1366783672
- Allison Andres, PSY.D.Psychologist1447402920
- Bradley Archibald, DDSDentist1083897029
- Robert Arnold, PH.D.Clinical Psychologist1437495256
- Wayne Batalo, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1215296918
- Felicia Berry-Mitchell, PHDPsychologist1154420214
- Anthony Bowers, LCSWClinical Social Worker1427799451
- Vickie CaldwellClinical Social Worker1497049050
- Emily CampbellDoula1861032286
- Christian Carter, PACPhysician Assistant1518133693
- Ashlan Chavez, PH.D.Clinical Psychologist1962187252
- Leacha Clark, ASWClinical Social Worker1366187676
- O. M. Custer, ED.D.Clinical Psychologist1134598295
- Melissa Derrick, RN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1427407832
- Pamela Dewitt, PPSSchool Counselor1063201903
- Carlos Dreiss, PH.D.Psychologist1184773962
- Thomas Eaton, DDSGeneral Practice Dentistry1013020106
- Frederick Fowler, MDForensic Psychiatry Physician1902047533
- Richard Galloway, MDGeneral Practice Physician1114109568
- Felicity Gazowsky, PSYDAddiction (Substance Use Disorder) Counselor1255478483
- Julia GilbertBehavior Analyst1891075677
- Michael Giovannoni, PHARM DPharmacist1679832331
- Carolyn GrahamStudent in an Organized Health Care Education/Training Program1235929159
- Cheryl Hanson, LMFT 138777Marriage & Family Therapist1982308862
- Sam Harary, PSYCHOLOGISTStudent in an Organized Health Care Education/Training Program1194058248
- Hillary Hart, RNNutrition Support Registered Nurse1326278391
- Wesley Hashimoto, M.D.Internal Medicine Physician1902080112
- Lucy Her, PSY.D.Clinical Psychologist1508041591
- Millie Herrera, PSY.DForensic Psychologist1316423692
- Evalyn Horowitz, M.D.Internal Medicine Physician1295930188
- Marilyn Immoos, PH.D.Clinical Psychologist1417111709
- Biju John, MDPsychiatry Physician1073691705
- Stephanie Johnson, PSY.D.Clinical Psychologist1588944813
- Walter Johnson, M.D.General Practice Physician1780919282
- Kathleen Keller, PSY.D.Clinical Psychologist1669883336
- Dawn Kettell-NessPsychiatric/Mental Health Registered Nurse1861932378
- Patricia Khoo, M.D.Psychiatry Physician1760555452
- John Klopping, PHARMDPharmacist1740904234
- Robert Landry, PH.D.Psychologist1992130108
- Elizabeth Larsson, LCSWClinical Social Worker1679052955
- Debra Laughlin, L.C.S.W.Clinical Social Worker1316287089
- Ava Le, PSYDClinical Psychologist1134720725
- Hillel LefkowitzClinical Psychologist1558009761
- Marisa Linehan, PSY.D.Clinical Psychologist1821744277
- Ellen Ling, DDSDentist1386828218
- Madaline Lomibao, PSY.DStudent in an Organized Health Care Education/Training Program1316472046
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Ione, California appears in the CMS National Plan and Provider Enumeration System with 94 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Ione - 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 Ione 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 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Ione is weighted toward Clinical Social Worker (14 clinicians, followed by Clinical Psychologist with 13 and Student in an Organized Health Care Education/Training Program with 9). 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, Ione reports roughly 0.2 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.
Of California's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a Ione practice address, a coverage gap Ione patients typically fill by traveling to a larger nearby hub.
For Ione patients, this directory is most useful as a starting shortlist. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Ione, CA?
There are 94 registered healthcare providers in Ione, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Ione?
The most common specialties in Ione are Clinical Social Worker, Clinical Psychologist, Student in an Organized Health Care Education/Training Program, Dentist, Psychologist. Clinical Social Worker has the most providers with 14.
Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
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 Aug 27, 2026.