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JOANNE SO M.D., MPH
NPI 1063779817
Internal Medicine in Bethesda, MD

Active since April 18, 2012PECOS Enrolled
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(301) 295-4810 Get Directions Write a Review

NPPES record last updated: June 5, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 5, 2025, Jun 18, 2021 (2 updates tracked since 2021).

About Joanne So M.d., Mph NPPES

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

JOANNE SO M.D., MPH (NPI 1063779817) is an individual internal medicine provider in Bethesda, Maryland, licensed in California (A127920) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Virginia Beach.

NPPES Registry Identity

NPI1063779817
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameJOANNE SOCredential: M.D., MPH
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-2188
Mailing Address34800 Bob Wilson DrSan Diego, CA 92134-1098 · (619) 881-9169
Phone(301) 295-4810
Sole ProprietorNo
Enumeration DateApril 18, 2012
Last NPPES UpdateJune 5, 20252 updates tracked since enumeration
NPPES CertifiedJune 5, 2025
✔ 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.
8901 ROCKVILLE PIKE, Bethesda, MD 20889
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Secondary Practice Location 1

Location 11550 Tomcat BlvdVirginia Beach, VA 23460-2218 · Phone (757) 953-3933

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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 20889 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
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
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.

DR. LIESL SHOCKLEY GRENIER M.D.
Dermatology (Dermatopathology)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MEGAN JUDITH LENIHAN MD
Surgery
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
JOHNS HOPKINS UNIVERSITY
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 400-1382
NATASHA ANTONY MD
Obstetrics & Gynecology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4600
MATTHEW NICHOLAS RIBEIRO MD
Anesthesiology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MR. ANDREW JOSEPH ULLMANN JR. DO
Internal Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (908) 635-6978
BRYCE TANNER GARDNER DMD
Military Health Care Provider
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4340
PARESH RAM PATEL MD
Emergency Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4810

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 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 295-4810.

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 June 5, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.