Healthcare Providers & Facilities in Grass Valley, CA
Public healthcare directory of 1,786 individual practitioners and 268 healthcare facilities located in Grass Valley, California.
Medical Specialties in Grass Valley
Select a specialty to view practitioner listings, practice locations, and qualifications.
Physical Therapist
Pharmacist
Dentist - General Practice
Internal Medicine
Nurse Practitioner - Family
Physician Assistant
Dentist
Nurse Practitioner
All Specialties in Grass Valley
Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 131 more with at least one listed practitioner. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Anesthesiology (10)
- Hospitalist (9)
- Internal Medicine - Cardiovascular Disease (6)
- Internal Medicine - Gastroenterology (3)
- Obstetrics & Gynecology (7)
- Ophthalmology (3)
- Orthopaedic Surgery (4)
- Otolaryngology (3)
- Pediatrics (6)
- Physical Medicine & Rehabilitation (4)
- Radiology - Diagnostic Radiology (5)
- Surgery (6)
Behavioral Health & Social Service Providers
- Behavior Technician (7)
- Counselor (124)
- Counselor - Addiction (Substance Use Disorder) (148)
- Counselor - Mental Health (155)
- Counselor - Professional (6)
- Counselor - School (12)
- Marriage & Family Therapist (137)
- Psychologist (7)
- Psychologist - Clinical (7)
- Psychologist - School (13)
- Social Worker (11)
- Social Worker - Clinical (47)
Dental Providers
Dietary & Nutritional Service Providers
- Dietitian, Registered (5)
- Nutritionist (3)
Eye and Vision Services Providers
- Optometrist (8)
Nursing Service Providers
Nursing Service Related Providers
- Adult Companion (50)
- Day Training/Habilitation Specialist (26)
- Doula (11)
- Technician (9)
Other Service Providers
- Acupuncturist (13)
- Case Manager/Care Coordinator (18)
- Community Health Worker (40)
- Health & Wellness Coach (4)
- Midwife (4)
- Naturopath (3)
- Peer Specialist (22)
- Specialist (12)
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Podiatric Medicine & Surgery Service Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Student, Health Care
Featured Healthcare Providers in Grass Valley
Practitioner profiles in Grass Valley, CA with recent CMS Medicare or Open Payments data.
Dr. Robert Morgan , DC
Chiropractor
Diana Petros , FNP-C
Nurse Practitioner - Family
Dr. Robert Giuliani , DDS
Dentist - General Practice
Linda Mcintosh , NP
Registered Nurse - Community Health
Dr. John Mallery , MD
Internal Medicine - Cardiovascular Disease
Dr. Roger Hicks , MD
Emergency Medicine
Largest Cities in California
Other California cities with a full directory, by the number of active practitioners listed in NPPES.
How Grass Valley compares with the U.S.
Compared with the U.S. as a whole, Grass Valley has more Chiropractors (6.5x), clinicians in Family Medicine (5.5x) and clinicians in Emergency Medicine (5.4x) per 100,000 residents.
Grass Valley has 12,655 active clinicians per 100,000 residents, compared with 2,198 for the U.S.
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.
91% of clinicians in Grass Valley listed in the CMS Medicare file (212 of 232) accept Medicare assignment. That is similar to the California share of 91%.
Only 232 of 1,786 active clinicians in Grass Valley 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.
23% of clinicians in Grass Valley listed in the CMS Medicare file (54 of 232) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 28%.
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).
Grass Valley CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Grass Valley, CA
Healthcare operations in Grass Valley, CA encompass 1,786 active individual practitioners and 268 registered medical facilities across 142 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Grass Valley accounts for $31.5 Million across 251,967 prescription claims. 343 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.0 Million in payments reported by companies to 94 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.