NPPES file of Aug 9, 2026

Mark Twain Medical Center in San Andreas, CA

This location of Mark Twain Medical Center bills under NPI 1508968819, an organization record issued on Sep 5, 2006 with the primary taxonomy Critical Access Hospital. It is one of 6 NPIs registered under this name and one of 3 in San Andreas; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1508968819
Legal name
Mark Twain Medical Center
Entity
Type 2 · organization
Primary taxonomy
Critical Access Hospital 282NC0060X
Practice location
768 MOUNTAIN RANCH RD, San Andreas, CA 95249
Phone
209-754-3521
Enumerated
Sep 5, 2006
Record updated
Apr 15, 2021
Authorized official
Chief Financial Officer (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other 2 San Andreas NPIs

  1. Mark Twain Medical Center704 MOUNTAIN RANCH RD · issued May 2, 20081205002938
  2. Mark Twain Medical Center768 MOUNTAIN RANCH RD · issued Aug 22, 20141255730545

11 clinicians CMS lists with Mark Twain Medical Center in San Andreas

  1. Edward Cahill, MDAdult Reconstructive Orthopaedic Surgery Physician1356396402
  2. Tahir ChaudhryStudent in an Organized Health Care Education/Training Program1992268569
  3. Ron Christian CrisostomoNurse Practitioner1194454900
  4. James Gonzales, MDSurgery Physician1255504627
  5. Donald Greco, MDPain Medicine Physician1740416767
  6. Michael Laird, MDOrthopaedic Surgery Physician1609953892
  7. Lindell Maloney, PA-CPhysician Assistant1164048807
  8. David Melniczek, MDSurgery Physician1275575664
  9. Mikel Meyer, DOOccupational Medicine Physician1548388929
  10. Renee Perry, DOObstetrics & Gynecology Physician1003980608
  11. Roger Rogalski, MDOrthopaedic Surgery Physician1457302887

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 6 Mark Twain Medical Center NPIs

Every location registered under this name, in 4 cities.

See every location

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 282N00000X General Acute Care Hospital
  • 282NC0060X Critical Access Hospital

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which San Andreas NPI should I use?

Ask the office which NPI it bills under; all 3 San Andreas NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.