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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. SHANNON CONSTANCE ANDERSON MD
NPI 1104403781
Internal Medicine in Baltimore, MD

Active since March 28, 2021PECOS Enrolled
1800 ORLEANS ST, BALTIMORE, MD 21287(410) 955-5000 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 23, 2026, Sep 16, 2026, Apr 7, 2021 and 1 more (4 updates tracked since 2021).

About Dr. Shannon Constance Anderson Md NPPES

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

DR. SHANNON CONSTANCE ANDERSON MD (NPI 1104403781) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D0106513) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104403781
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. SHANNON CONSTANCE ANDERSONCredential: MD
Location Address1800 ORLEANS STBaltimore, MD 21287-0010
Mailing Address6201 Greenleigh AveBaltimore, MD 21220-2004 · (410) 933-6423
Phone(410) 955-5000
Sole ProprietorNo
Enumeration DateMarch 28, 2021
Last NPPES UpdateSeptember 23, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2026
✔ NPI 1104403781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D0106513
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.
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License D0106513 (MD)
1800 ORLEANS ST, Baltimore, MD 21287
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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. Shannon Constance Anderson Md 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 21287 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

KATHRYN ROSENBLATT M.D.
Anesthesiology
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-7461
DR. CARMEL BOGLE M.D.
Pediatrics
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (443) 287-0526
MIAN MOHAMMAD BILAL KHALID MD
Internal Medicine (Gastroenterology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
SPENCER WILSON
Surgery (Trauma Surgery)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 933-6423
EVAN FOX
Radiology (Neuroradiology)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
ADAM ROBERT BUSSELLS
Physician Assistant
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
DR. SARAH WALSER MD
Student in an Organized Health Care Education/Training Program
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (484) 883-6433
LYNN DESROSIERS FNP-C
Nurse Practitioner (Family)
1800 ORLEANS ST
BALTIMORE, MD 21287
Baltimore City (410) 955-2800

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 Shannon Anderson's NPI number?

The NPI number for Shannon Anderson is 1104403781. It was assigned to this individual provider in the NPPES registry on March 28, 2021.

Where is Shannon Anderson located?

Shannon Anderson practices at 1800 Orleans St, Baltimore, MD 21287. The listed phone number is (410) 955-5000.

What is Shannon Anderson's specialty?

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

Is Shannon Anderson enrolled in Medicare?

Yes. Shannon Anderson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Shannon Anderson was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.