Quick answers
- Does Britton L. Whalen accept Medicare assignment?
- Yes. Medicare's clinician data says Britton L. Whalen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Britton L. Whalen see?
- In 2024, CMS data shows 97 Original Medicare patients and 528 services for Britton L. Whalen. This counts Original Medicare only and measures volume, not quality.
- What is Britton L. Whalen's NPI number?
- 1437914538. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Britton L. Whalen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 97 |
|---|---|
| Services billed to Medicare | 528 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)135 services
- Destruction of precancer skin growth, 2-14 growths (17003)78 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)46 services
- Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm (11301)30 services
- Destruction of skin growth, 1-14 growths (17110)24 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol73%
- Arthritis47%
- Diabetes42%
- Ischemic heart disease27%
- Anxiety25%
Practice locations
Addresses where Britton L. Whalen is enrolled with Medicare (CMS data updated October 2, 2026).
- 319 Mall DrHanford, CA 93230 (559) 431‑2397
- 7115 N Chestnut Ave, Suite 101Fresno, CA 93720 (559) 431‑2397
Group practices
Medicare enrollment lists Britton L. Whalen as a member of this group (CMS data updated October 2, 2026).
- Edgar S. Macias, M.D., Inc13 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Hanford
Clinicians with the same Medicare primary specialty in Hanford, CA — not a recommendation.
Other clinicians in Edgar S. Macias, M.D., Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437914538 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians