Quick answers
- Does Carlos L. Untal accept Medicare assignment?
- Yes. Medicare's clinician data says Carlos L. Untal 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 Carlos L. Untal see?
- In 2024, CMS data shows 401 Original Medicare patients and 5,717 services for Carlos L. Untal. This counts Original Medicare only and measures volume, not quality.
- What is Carlos L. Untal's NPI number?
- 1316923998. 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 Carlos L. Untal, 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 | 401 |
|---|---|
| Services billed to Medicare | 5,717 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,361 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,349 services
- Testing for presence of drug, by chemistry analyzers (80307)777 services
- Compounded drug, not otherwise classified (J7999)279 services
- Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician (62370)263 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%
- Arthritis75%
- High cholesterol74%
- Anxiety58%
- Depression37%
- Diabetes30%
Hospitals where Carlos L. Untal works
Medicare's Facility Affiliation Data lists Carlos L. Untal at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050232
- Marian Regional Medical CenterSanta Maria, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050107
Practice locations
Addresses where Carlos L. Untal is enrolled with Medicare (CMS data updated October 2, 2026).
- 1551 Bishop St, Suite 210San Luis Obispo, CA 93401 (805) 329‑6262
- 8844 Morro RdAtascadero, CA 93422 (805) 329‑6262
Group practices
Medicare enrollment lists Carlos L. Untal as a member of this group (CMS data updated October 2, 2026).
- Hullander and Mozingo LP10 clinicians in the group
Specialties
Other emergency medicine doctors in San Luis Obispo
Clinicians with the same Medicare primary specialty in San Luis Obispo, CA — not a recommendation.
Other clinicians in Hullander and Mozingo LP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1316923998 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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