1. Home
  2. Directory
  3. California
  4. Santa Ana
  5. Family Medicine
  6. NPI Profile

SENIOR DOC NORTH CAROLINA PC
NPI 1902786049
Family Medicine in Santa Ana, CA

Active since September 08, 2025
5 HUTTON CENTRE DR STE 950, SANTA ANA, CA 92707(855) 434-7763(949) 281-5550 Get Directions Write a Review

NPPES record last updated: September 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Senior Doc North Carolina Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SENIOR DOC NORTH CAROLINA PC (NPI 1902786049) is a healthcare organization registered as a family medicine in Santa Ana, California and active in the NPI registry since September 2025. The organization lists John Geiss, Ceo, as its authorized official.

NPPES Registry Identity

NPI1902786049
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSENIOR DOC NORTH CAROLINA PC
Location Address5 HUTTON CENTRE DR STE 950Santa Ana, CA 92707-8744
Mailing Address5 Hutton Centre Dr Ste 950Santa Ana, CA 92707-8744 · (855) 434-7763 · Fax (949) 281-5550
Phone(855) 434-7763
Fax(949) 281-5550
Organization SubpartNo
Authorized OfficialJohn GeissCeo · (657) 315-0858
Enumeration DateSeptember 8, 2025
NPPES CertifiedSeptember 7, 2025
✔ NPI 1902786049 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Senior Doc North Carolina Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Senior Doc North Carolina PC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (7)

Meredith Bock, MD
Neurology
NPI 1447612940
505 PARNASSUS AVE
San Francisco, CA 94143
(818) 648-6941
✔ PECOS✔ Accepts Medicare
John Geiss, D.O.
Osteopathic Manipulative Medicine
NPI 1053651497
5 HUTTON CENTRE DR STE 950
Santa Ana, CA 92707
(855) 434-7763
✔ Accepts Medicare
Kellie Pacheco
Nurse Practitioner
NPI 1326728668
1710 PATTERSON ST
Nashville, TN 37203
(615) 327-1085
✔ PECOS✔ Accepts Medicare
Peris Rodriguez, PMHNP
Nurse Practitioner
NPI 1861292443
915 HIGHLAND POINTE DR STE 250
Roseville, CA 95678
(650) 695-3354
✔ PECOS
Jeffrey Thomas
Internal Medicine
NPI 1932337136
2592 N SANTIAGO BLVD
Orange, CA 92867
(855) 434-7763
✔ PECOS✔ Accepts Medicare
Christopher Vercammen-Grandjean, MD
Internal Medicine
NPI 1942543699
563 S KENSINGTON RD
Orange, CA 92869
(619) 865-9156
✔ PECOS✔ Accepts Medicare
Alexi Yarashevich, NP
Nurse Practitioner
NPI 1306340831
151 N KRAEMER BLVD STE 100
Placentia, CA 92870
(949) 209-1563
✔ PECOS✔ Accepts Medicare

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Senior Doc North Carolina PC's NPI number?

The NPI number for Senior Doc North Carolina PC is 1902786049. It was assigned to this organization in the NPPES registry on September 8, 2025.

Where is Senior Doc North Carolina PC located?

Senior Doc North Carolina PC is located at 5 Hutton Centre Dr Ste 950, Santa Ana, CA 92707. The listed phone number is (855) 434-7763.

What is Senior Doc North Carolina PC's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Senior Doc North Carolina PC enrolled in Medicare?

Yes. Senior Doc North Carolina PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Senior Doc North Carolina PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 4 Medicare specialties reassign their Medicare billing to Senior Doc North Carolina PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (3), Internal Medicine (2) and Neurology (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Senior Doc North Carolina PC was last updated on September 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.