WILLIAM S HARDEN M.D.
NPI 1992734412
Family Medicine in Redding, CA
About William S Harden M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM S HARDEN M.D. (NPI 1992734412) is an individual family medicine provider in Redding, California, licensed in California (G79976) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William S Harden M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show William Harden reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redding, CA 96001
- Reassigned Medicare billing, California enrollment
- 1,191 clinicians in this Medicare group
Redding, CA 96001
- Reassigned Medicare billing, California enrollment
- 11 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 96001 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 18
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
REDDING, CA 96001
REDDING, CA 96001
REDDING, CA 96001
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Harden's NPI number?
The NPI number for William Harden is 1992734412. It was assigned to this individual provider in the NPPES registry on June 30, 2006.
Where is William Harden located?
William Harden practices at 2510 Airpark Dr Suite 201, Redding, CA 96001. The listed phone number is (530) 244-4034.
What is William Harden's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William Harden enrolled in Medicare?
Yes. William Harden is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for William Harden's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Harden reassigns Medicare benefits to 2 organizations: Dignity Health Medical Foundation (Redding, CA) and Redding Family Medical Group Inc (Redding, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Harden's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Harden was last updated on January 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# William S Harden, M.D. · NPI 1992734412
Family Medicine physician in Redding, California. Individual provider, active in the CMS NPPES registry since June 30, 2006.
## Identity
- **NPI:** 1992734412 (Entity type: Individual)
- **Enumerated:** June 30, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** G79976 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2510 AIRPARK DR, SUITE 201, Redding, CA 96001-2449
- **Phone:** (530) 244-4034 · **Fax:** (530) 244-1821
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Dignity Health Medical Foundation (NPI 1912288432, Redding, CA); Redding Family Medical Group Inc (NPI 1487640868, Redding, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 1993
## Record status
- **NPPES last updated:** January 22, 2020
- **Other identifiers:** Medicaid 00G799760 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1992734412) · Data from the CMS NPPES public registry.