Herbert Day, D.O.
NPI 1609841006 · Family Medicine Physician · Fairbanks, AK
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herbert Day, D.O. is a Family Medicine Physician provider in Fairbanks, AK (NPI 1609841006).
Provider details
- NPI number
- 1609841006
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- MEDO5553 (AK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,055 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 244 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 175 | $158 |
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 152 | $7 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 101 | $231 |
| Colorectal Cancer Screening; Colonoscopy on Individual Not Meeting Criteria for High RiskG0121 | 78 | $229 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 26 | 24 |
| Doxycycline Monohydrate | 22 | 21 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 20 | 18 |
| Cefdinir | 18 | 18 |
| Tizanidine Hcl | 18 | 14 |
| Levothyroxine Sodium | 15 | — |
| Ipratropium/Albuterol Sulfatebrand: Combivent Respimat | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$121 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-20
- Last updated
- 2023-03-07
- Certified
- 2021-04-09
Frequently asked questions
- What is Herbert Day's NPI number?
- Herbert Day's National Provider Identifier (NPI) is 1609841006, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herbert Day's specialty?
- Herbert Day is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Herbert Day located?
- Herbert Day's practice location on file with NPPES is 1001 Noble St, Fairbanks, AK 99701-4922.
- What is Herbert Day's phone number?
- The practice phone number listed in the NPPES registry for Herbert Day is (907) 459-3511.
- Does Herbert Day accept Medicare?
- Herbert Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herbert Day's NPI active?
- Yes — Herbert Day's NPI (1609841006) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.