2026 data CMS NPPES NUCC Taxonomy

Doctors in Upland, CA

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

1,758
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Addiction (Substance Use Disorder) Counselor
Top specialty
161 providers
California
State
CA

1,758 healthcare providers across 20 specialties

Upland, California appears in the CMS National Plan and Provider Enumeration System with 1,758 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 Upland — 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 Upland practice location on file.

The provider mix in Upland is weighted toward Addiction (Substance Use Disorder) Counselor (161 clinicians, followed by Marriage & Family Therapist with 123 and Pharmacist with 75). 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, Upland reports roughly 4.5 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.

For Upland 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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.

1,758
Providers
20
Specialties
4.5
Per 100K (state)

Which specialties are most common in Upland

Addiction (Substance Use Disorder) Counselor 161
Marriage & Family Therapist 123
Pharmacist 75
Family Nurse Practitioner 72
General Practice Dentistry 60
Behavior Technician 56
Physical Therapist 54
Mental Health Counselor 52
Clinical Social Worker 48
Dentist 47
Counselor 44
Student in an Organized Health Care Education/Training Program 41
Family Medicine Physician 38
Community Health Worker 34
Physician Assistant 33
Internal Medicine Physician 29
Chiropractor 27
Nurse Practitioner 26
Specialist 26
Case Manager/Care Coordinator 25

Healthcare Providers (Page 9)

Name
MARTHA DIAZ
Health & Wellness Coach
ROSSANA DIAZ, LE, CMT, MMP
Massage Therapist
VIOLETA DIAZ
Peer Specialist
YOSELINE DIAZ, BSW
Case Manager/Care Coordinator
LOUIS DIBERNARDO, MD
Family Medicine Physician
LAURIE DICKSON-GILLESPIE, PH.D.
Clinical Child & Adolescent Psychologist
TAYLOR DIGBY, LM, CPM
Midwife
EDWARD DIGIAMARINO, M.D.
Anesthesiology Physician
TRUONG DINH, MD
Student in an Organized Health Care Education/Training Program
ANNA DO
Occupational Therapist
MICHELLE DO, PHARMD
Pharmacotherapy Pharmacist
ERIKA DOCKSTADER, FNP-C
Family Nurse Practitioner
KARIN DOLORIER
Behavior Technician
WILLIAM DOMB, DMD
General Practice Dentistry
LOLITA DOMINGUE, LMFT
Marriage & Family Therapist
MARITZA DOMINGUEZ
Mental Health Counselor
OLAF DOMINGUEZ, PHARMD
Pharmacist
LORRAINE DOMINICK, WHNP
Obstetrics & Gynecology Nurse Practitioner
IAN DONAHUE, PA-C
Physician Assistant
MICHELLE DONALDSON, MS
Marriage & Family Therapist
RUSSELL DORADO, M.D.
Anesthesiology Physician
TIMOTHY DORSEY
Addiction (Substance Use Disorder) Counselor
BERENICE DOUGHERTY
Clinical Social Worker
LAUREN DOWELL
Pediatric Occupational Therapist
JAMES DOYLE, MS
Professional Counselor
LYNNE DREWES, PA
Medical Physician Assistant
ROBERT DRIGGERS
Addiction (Substance Use Disorder) Counselor
JOANNA DU, M.D.
Obstetrics & Gynecology Physician
LAURIE DUBELLAY - ORTIZ
Addiction (Substance Use Disorder) Counselor
ROGER DUBER, DO
Cardiovascular Disease Physician
DONNA DUDZIAK, M.D.
Surgery Physician
TANYA DUMAS
Licensed Vocational Nurse
MYESHA DUNN, M.A.
Marriage & Family Therapist
TRISHA DUONG, PA
Physician Assistant
ENRIQUE DURAN, MFT PRE-LICENSED
Rehabilitation Counselor
DANELLA DURANGO-PEREZ
Social Worker
KENNEDY DURANT
Addiction (Substance Use Disorder) Counselor
NANCY DURON, ASCW
Social Worker
DANIEL DUROSEAU, DDS
General Practice Dentistry
BRUCE DUVALL, O.D.
Optometrist
JOSEPH DWYER
Behavior Technician
CHRISTIN DZIADOWICZ, FNP
Family Nurse Practitioner
LILY DZIDULA
Community Health Worker
JENMARIE EADIE, LCSW
Clinical Social Worker
DAWN EARLS
Counselor
ZOHAL EBRAHIMI, DMD
Dentist
JACLYNN ECK
Orthopedic Physical Therapist
DANIEL EDMONDSON, H.I.S LICENSE #325
Hearing Instrument Specialist
VICTORIA EDWARDS, DPT
Orthopedic Physical Therapist
ELHAM EFTEKHARI, PHARMD
Pharmacist

Nearby Cities in California

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

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Frequently Asked Questions

How many doctors are in Upland, CA?
There are 1,758 registered healthcare providers in Upland, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Upland?
The most common specialties in Upland are Addiction (Substance Use Disorder) Counselor, Marriage & Family Therapist, Pharmacist, Family Nurse Practitioner, General Practice Dentistry. Addiction (Substance Use Disorder) Counselor has the most providers with 161.

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.