DR. HERBERT DAY D.O.
NPI 1609841006
Family Medicine in Fairbanks, AK
About Dr. Herbert Day D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HERBERT DAY D.O. (NPI 1609841006) is an individual family medicine provider in Fairbanks, Alaska, licensed in Alaska (MEDO5553) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1998).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 1
Accepted Insurance
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
Dr. Herbert Day D.o. 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 Reassignment
Medicare enrollment records show Herbert Day reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fairbanks, AK 99701
- Reassigned Medicare billing, Alaska enrollment
- 172 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.
Areas of Expertise CMS Part B claims 14
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 99701 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.
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.
FAIRBANKS, AK 99701
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 Herbert Day's NPI number?
The NPI number for Herbert Day is 1609841006. It was assigned to this individual provider in the NPPES registry on February 20, 2006.
Where is Herbert Day located?
Herbert Day practices at 1650 Cowles St, Fairbanks, AK 99701. The listed phone number is (907) 458-2682.
What is Herbert Day's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Herbert Day enrolled in Medicare?
Yes. Herbert Day 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 organization bills Medicare for Herbert Day's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Herbert Day reassigns Medicare benefits to Tanana Valley Clinic LLC (Fairbanks, AK). The 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 Herbert Day's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Herbert Day accept?
Health plans from Moda Health Plan, Inc. and Premera Blue Cross Blue Shield of Alaska list Herbert Day as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Herbert Day was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Dr. Herbert Day, D.O. · NPI 1609841006
Family Medicine physician in Fairbanks, Alaska. Individual provider, active in the CMS NPPES registry since February 20, 2006.
## Identity
- **NPI:** 1609841006 (Entity type: Individual)
- **Enumerated:** February 20, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MEDO5553 (Alaska)
- **Sole proprietor:** No
## Practice location
- **Address:** 1650 COWLES ST, Fairbanks, AK 99701-5998
- **Phone:** (907) 458-2682 · **Fax:** (907) 458-2628
## 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:** Tanana Valley Clinic LLC (NPI 1922559558, Fairbanks, AK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 1998
## Record status
- **NPPES last updated:** August 17, 2026
- **Other identifiers:** Medicaid 1017015 (AK)
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Source: [NPI Profile](https://npiprofile.com/npi/1609841006) · Data from the CMS NPPES public registry.