Quick answers
- Does Marc C. McLawhorn accept Medicare assignment?
- Yes. Medicare's clinician data says Marc C. McLawhorn 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 Marc C. McLawhorn see?
- In 2024, CMS data shows 58 Original Medicare patients and 107 services for Marc C. McLawhorn. This counts Original Medicare only and measures volume, not quality.
- What is Marc C. McLawhorn's NPI number?
- 1063774347. 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 Marc C. McLawhorn, 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 | 58 |
|---|---|
| Services billed to Medicare | 107 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Insertion of artery tube for blood sampling or infusion through skin (36620)47 services
- Anesthesia for extensive surgery on spine (00670)34 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%
- Arthritis75%
- Anxiety45%
- Depression38%
- Chronic kidney disease36%
Hospitals where Marc C. McLawhorn works
Medicare's Facility Affiliation Data lists Marc C. McLawhorn 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.
- St Josephs Hospital and Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030024
Practice locations
Addresses where Marc C. McLawhorn is enrolled with Medicare (CMS data updated October 2, 2026).
- 500 W Thomas Rd, 680 Dhmg St Joseph'S Pelvic Pain and SurgPhoenix, AZ 85013 (602) 406‑6017
Group practices
Medicare enrollment lists Marc C. McLawhorn as a member of this group (CMS data updated October 2, 2026).
- SJHMC Physician Services646 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in SJHMC Physician Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2012 (14 years since medical school) |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063774347 |
| 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