Arthur Allen Johnson, PA-C
- Part D claims, 2024
- 275
- Hospital affiliations
- 1
- Medical groups
- 4
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 844 Old Tunnel Road, Grass Valley, CA 95945
- Practice phone
- Call (530) 273-4984
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd)
FQHC - Main Site · Grass Valley, California
Find Arthur Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Arthur Allen Johnson is a physician assistant in Grass Valley, California
Arthur Johnson practices at Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California.
Arthur Johnson's NPI, 1104880830, was assigned on April 12, 2006. Arthur Johnson holds Arizona license 3189.
- NPI
- 1104880830NPI Registry (opens in a new tab)
- NPI enumeration date
- April 12, 2006
- NPI status
- Active
- Practice phone
- (530) 273-4984
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Arthur Allen Johnson practices at Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California
Arthur Johnson's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd), at 844 Old Tunnel Road, Grass Valley, CA 95945 in Nevada County. The practice phone is (530) 273-4984.
- Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd)844 Old Tunnel Road, Grass Valley, CA 95945 · Nevada CountyPhone(530) 273-4984
Source: Dmand AI Affiliation Data
Arthur Allen Johnson is affiliated with 3 sites of care and 4 medical groups
Arthur Johnson's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California. Arthur Johnson is also affiliated with Humboldt General Hospital. The medical group on file is Western Sierra Medical Clinic. Dmand AI also links Arthur Johnson to 3 more medical groups and 1 urgent care center, each named with a free account. Arthur Johnson's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Arthur Allen Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Arthur Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Arthur Allen Johnson is one of 11,482 physician assistants in California
Physician assistant is Arthur Johnson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Arthur Johnson is licensed in Arizona.
Specialties and state licenses
- Physician assistant, ArizonaPrimary
Physician assistants near Arthur Johnson
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Arthur Allen Johnson's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Arthur Johnson's median patient age at 46, with 45% women.
Arthur Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Arthur Allen Johnson wrote 275 Medicare Part D claims in 2024
In 2024, Arthur Johnson wrote 275 Medicare Part D claims for 89 patients. 89% of them were for generic drugs.
Arthur Johnson's Part D claims by kind of drug, 2024
- Generic245 claims89%
- Brand-name and other30 claims11%
Drug classes CMS tracks in Arthur Johnson's Part D claims, 2024
- Opioids5%13 of 275 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Sources for Arthur Allen Johnson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Arthur Allen Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Arthur Allen Johnson's NPI number?
Arthur Allen Johnson's NPI number is 1104880830. It was assigned on April 12, 2006, and it is active in the NPI Registry.
What does Arthur Allen Johnson specialize in?
Arthur Allen Johnson is a physician assistant in Grass Valley, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Arthur Allen Johnson practice?
Arthur Johnson practices at 844 Old Tunnel Road, Grass Valley, CA 95945. Arthur Johnson's primary practice is Western Sierra Medical Clinic - Grass Valley (Old Tunnel Rd) in Grass Valley, California. Dmand AI also links Arthur Johnson to 3 medical groups and 1 urgent care center.
What is Arthur Allen Johnson's office phone number?
The practice phone on file for Arthur Johnson is (530) 273-4984.
What is Arthur Allen Johnson's medical license number?
Arthur Johnson holds Arizona license 3189.
Which hospitals is Arthur Allen Johnson affiliated with?
Arthur Johnson is affiliated with Humboldt General Hospital.
What medical group is Arthur Allen Johnson part of?
Arthur Johnson is linked to Western Sierra Medical Clinic. Dmand AI links Arthur Johnson to 3 more medical groups.
How long has Arthur Allen Johnson been practicing?
Arthur Johnson graduated from medical school in 2003, 23 years ago.
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