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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOANNE SO M.D., MPH
NPI 1063779817
Internal Medicine in Camp Pendleton, CA

Active since April 18, 2012PECOS Enrolled
200 MERCY CIRCLE, CAMP PENDLETON, CA 92055(760) 725-1288 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 6, 2026, Jun 5, 2025, Jun 18, 2021 (3 updates tracked since 2021).

About Dr. Joanne So M.d., Mph NPPES

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

DR. JOANNE SO M.D., MPH (NPI 1063779817) is an individual internal medicine provider in Camp Pendleton, California, licensed in California (A127920) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063779817
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOANNE SOCredential: M.D., MPH
Location Address200 MERCY CIRCLECamp Pendleton, CA 92055
Mailing Address200 Mercy CircleCamp Pendleton, CA 92055 · (619) 881-9169
Phone(760) 725-1288
Sole ProprietorNo
Enumeration DateApril 18, 2012
Last NPPES UpdateAugust 6, 20263 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1063779817 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A127920
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.
200 MERCY CIRCLE, Camp Pendleton, CA 92055
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joanne So M.d., Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92055 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARIA J HERRERA PH.D.
Psychologist (Clinical)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (510) 542-0859
SHERRI MARTINEZ LMFT, ADCII
Counselor (Addiction (Substance Use Disorder))
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-0063
DR. ASHLEY BITTLE LCSW, PSY.D.
Psychologist (Clinical)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3322
CAROLYN STEINLAGE DPT
Physical Therapist
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3791
SHANE MCGUIRE FMF RECON IDC
Military Health Care Provider (Independent Duty Corpsman)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 725-8912
MELINDA WEE FAH MARTINEZ PA
Physician Assistant
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-4550
ALEXANDER JEFFREY NELSON PA-C
Physician Assistant
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 725-1288
ELLA HAHN SCHULTZ DO
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-1288

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 Joanne So's NPI number?

The NPI number for Joanne So is 1063779817. It was assigned to this individual provider in the NPPES registry on April 18, 2012.

Where is Joanne So located?

Joanne So practices at 200 Mercy Circle, Camp Pendleton, CA 92055. The listed phone number is (760) 725-1288.

What is Joanne So's specialty?

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

Is Joanne So enrolled in Medicare?

Yes. Joanne So is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Joanne So was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.