1. Home
  2. Directory
  3. California
  4. San Diego
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CARBON MEDICAL CENTER MULTISPECIALTY GROUP INC
NPI 1609678226
Internal Medicine in San Diego, CA

Active since March 25, 2025
9855 ERMA RD STE 133, SAN DIEGO, CA 92131(760) 656-5523 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Carbon Medical Center Multispecialty Group Inc NPPES

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

CARBON MEDICAL CENTER MULTISPECIALTY GROUP INC (NPI 1609678226) is a healthcare organization registered as an internal medicine in San Diego, California and active in the NPI registry since March 2025. The organization lists Dat William Nguyen, Ceo, as its authorized official.

NPPES Registry Identity

NPI1609678226
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCARBON MEDICAL CENTER MULTISPECIALTY GROUP INC
Location Address9855 ERMA RD STE 133San Diego, CA 92131-1092
Mailing AddressPo Box 8005Rancho Santa Fe, CA 92067-8005 · (760) 656-5523
Phone(760) 656-5523
Organization SubpartNo
Authorized OfficialDat William NguyenCeo · (619) 300-2340
Enumeration DateMarch 25, 2025
Last NPPES UpdateOctober 21, 2026
NPPES CertifiedOctober 21, 2026
✔ NPI 1609678226 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
9855 ERMA RD STE 133, San Diego, CA 92131
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carbon Medical Center Multispecialty Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

24

Medicare enrollment records show 24 clinicians reassign Medicare billing to Carbon Medical Center Multispecialty Group Inc, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 6 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Nurse Practitioner16
Psychiatry6
Internal Medicine1
Marriage and Family Therapist1

Nearest to this location (20)

See all 24
Daisy Concon, PMHNP
Nurse Practitioner
NPI 1417695867
9855 ERMA RD STE 133
San Diego, CA 92131
(858) 342-4572
✔ PECOS✔ Accepts MedicareSame address
Linda Hoang
Nurse Practitioner
NPI 1447992193
9855 ERMA RD STE 133
San Diego, CA 92131
(760) 656-5523
✔ PECOS✔ Accepts MedicareSame address
Alexandra Macedo, NP
Nurse Practitioner
NPI 1598375834
9855 ERMA RD STE 133
San Diego, CA 92131
(619) 531-5800
✔ PECOS✔ Accepts MedicareSame address
Thong Pham
Nurse Practitioner
NPI 1194318436
9855 ERMA RD STE 133
San Diego, CA 92131
(858) 343-4572
✔ PECOS✔ Accepts MedicareSame address
Lena Chung, PMHNP-BC
Nurse Practitioner
NPI 1831544766
9855 ERMA RD STE 133
San Diego, CA 92131
(858) 342-4572
✔ PECOS✔ Accepts MedicareSame address
Kyle Gambill
Nurse Practitioner
NPI 1730054883
2560 NORTHSIDE DR APT 212
San Diego, CA 92108
(760) 985-7397
✔ PECOS✔ Accepts Medicare9.4 mi
Ajay Kumra, RN
Nurse Practitioner
NPI 1902385644
6719 ALVARADO RD STE 201
San Diego, CA 92120
(847) 454-6272
✔ PECOS✔ Accepts Medicare10 mi
Sara Vo, PMHNP
Nurse Practitioner
NPI 1053132902
8881 FLETCHER PKWY STE 350-360
La Mesa, CA 91942
(858) 279-1223
✔ PECOS✔ Accepts Medicare11 mi
Stephen Kaiser, M.D.
Psychiatry
NPI 1245677624
5555 GROSSMONT CENTER DR
La Mesa, CA 91942
(619) 356-3216
✔ PECOS✔ Accepts Medicare11 mi
Dat Nguyen, MD
Internal Medicine
NPI 1386626448
5565 GROSSMONT CENTER DR STE 229
La Mesa, CA 91942
(858) 349-3760
✔ PECOS11 mi
Brandon Ro, MSN, PMHNP
Nurse Practitioner
NPI 1487381059
5565 GROSSMONT CENTER DR STE 229
La Mesa, CA 91942
(858) 342-4572
✔ PECOS✔ Accepts Medicare11 mi
Joseph Semmel, PMHNP-BC
Nurse Practitioner
NPI 1700543188
3853 ROSECRANS ST
San Diego, CA 92110
(619) 692-8232
✔ PECOS✔ Accepts Medicare12 mi
Michael Fitzgerald, PMHNP
Nurse Practitioner
NPI 1144606963
1111 6TH AVE STE 550
San Diego, CA 92101
(510) 283-8560
✔ PECOS✔ Accepts Medicare14 mi
Edelpaulette Jane Pugh
Marriage and Family Therapist
NPI 1902383334
374 H ST
Chula Vista, CA 91910
(619) 510-8480
✔ PECOS✔ Accepts Medicare15 mi
Gemma Balcita
Nurse Practitioner
NPI 1750033155
5838 EDISON PL
Carlsbad, CA 92008
(888) 515-3834
✔ PECOS✔ Accepts Medicare17 mi
Markus Ploesser, MD
Psychiatry
NPI 1669662755
CDCR 765 THIRD AVENUE STE 300
Chula Vista, CA 91910
(619) 476-3700
✔ PECOS✔ Accepts Medicare20 mi
Brittany Voelker, PSYCHOLOGIST 35615
Psychiatry
NPI 1841096492
1269 INDIAN CREEK DR
Chula Vista, CA 91915
(619) 755-5589
✔ PECOS✔ Accepts Medicare21 mi
Jusac Suryanata, NP
Nurse Practitioner
NPI 1124897046
3308 CAROLYN CIR
Oceanside, CA 92054
(760) 658-4405
✔ PECOS✔ Accepts Medicare24 mi
Lawrence Tucker, M.D.
Psychiatry
NPI 1669453262
4000 MACARTHUR BLVD SUITE 600 EAST TOWER
Newport Beach, CA 92660
(949) 257-4217
✔ PECOS✔ Accepts Medicare67 mi
Alan Schneider, MD
Psychiatry
NPI 1639110869
1151 DOVE ST STE 100
Newport Beach, CA 92660
(818) 472-1132
✔ PECOS67 mi
See all 24 clinicians

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 Carbon Medical Center Multispecialty Group Inc's NPI number?

The NPI number for Carbon Medical Center Multispecialty Group Inc is 1609678226. It was assigned to this organization in the NPPES registry on March 25, 2025.

Where is Carbon Medical Center Multispecialty Group Inc located?

Carbon Medical Center Multispecialty Group Inc is located at 9855 Erma Rd Ste 133, San Diego, CA 92131. The listed phone number is (760) 656-5523.

What is Carbon Medical Center Multispecialty Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Carbon Medical Center Multispecialty Group Inc enrolled in Medicare?

Yes. Carbon Medical Center Multispecialty Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Carbon Medical Center Multispecialty Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 24 clinicians in 4 Medicare specialties reassign their Medicare billing to Carbon Medical Center Multispecialty Group Inc. 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 (16), Psychiatry (6) and Internal Medicine (1). Of these, 5 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Carbon Medical Center Multispecialty Group Inc was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.