Quick answers
- Does Karen M. Romero accept Medicare assignment?
- Yes. Medicare's clinician data says Karen M. Romero 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 Karen M. Romero see?
- In 2024, CMS data shows 1,074 Original Medicare patients and 2,857 services for Karen M. Romero. This counts Original Medicare only and measures volume, not quality.
- What is Karen M. Romero's NPI number?
- 1861502239. 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 Karen M. Romero, 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 | 1,074 |
|---|---|
| Services billed to Medicare | 2,857 |
| Different services or procedures | 126 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)382 services
- Screening mammography (77067)203 services
- Screening 3d breast mammography (77063)202 services
- X-ray of chest, 2 views (71046)182 services
- X-ray of knee, 3 views (73562)123 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 cholesterol67%
- Diabetes46%
- Arthritis37%
- Ischemic heart disease20%
- Chronic kidney disease20%
Practice locations
Addresses where Karen M. Romero is enrolled with Medicare (CMS data updated October 2, 2026).
- 1775 3rd StAtwater, CA 95301 (209) 381‑2080
- 3605 Hospital RdAtwater, CA 95301 (209) 381‑2000
Group practices
Medicare enrollment lists Karen M. Romero as a member of this group (CMS data updated October 2, 2026).
- Castle Family Health Centers Inc5 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Atwater
Clinicians with the same Medicare primary specialty in Atwater, CA — not a recommendation.
Other clinicians in Castle Family Health Centers Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of New Mexico School Of Medicine |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861502239 |
| 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