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Emergency Medicine

Samuel D. Miller Iv, DO

Works at hospitals in Santa Maria, CA · California

Summary

Dr. Samuel D. Miller Iv, DO is an emergency medicine doctor at 1400 E Church St, Santa Maria, CA 93454. Phone: (805) 739-3000. Accepts Medicare assignment. In 2024, Samuel D. Miller Iv had 840 Original Medicare patients and 1,457 services. NPI 1619066693. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1400 E Church St, Santa Maria, CA 93454 · Directions
  • Phone: (805) 739‑3000
  • Medicare: Accepts Medicare assignment
  • Hospital: Marian Regional Medical Center
  • Group practice: Cep America - California
  • Medical school: graduated 2003 (23 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Samuel D. Miller Iv, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Samuel D. Miller Iv accept Medicare assignment?
Yes. Medicare's clinician data says Samuel D. Miller Iv 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 Samuel D. Miller Iv see?
In 2024, CMS data shows 840 Original Medicare patients and 1,457 services for Samuel D. Miller Iv. This counts Original Medicare only and measures volume, not quality.
What is Samuel D. Miller Iv's NPI number?
1619066693. 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 Samuel D. Miller Iv, 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 patients840
Services billed to Medicare1,457
Different services or procedures25
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)656 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)496 services
  3. Emergency department visit with moderate level of medical decision making (99284)158 services
  4. Critical care, first 30-74 minutes (99291)104 services
  5. Emergency department visit with low level of medical decision making (99283)13 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 cholesterol75%
  • Arthritis49%
  • Diabetes41%
  • Depression39%
  • Anxiety37%

Hospitals where Samuel D. Miller Iv works

Medicare's Facility Affiliation Data lists Samuel D. Miller Iv 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.

  • 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 Samuel D. Miller Iv is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Samuel D. Miller Iv as a member of this group (CMS data updated October 2, 2026).

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Santa Maria

Clinicians with the same Medicare primary specialty in Santa Maria, CA — not a recommendation.

All emergency medicine doctors in Santa Maria →

Other clinicians in Cep America - California

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Graduation year2003 (23 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619066693
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians