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KRISTEN MATHIAS
NPI 1962963066
Internal Medicine - Rheumatology in Baltimore, MD

Active since March 29, 2019PECOS Enrolled
5200 EASTERN AVE MASON F. LORD BUILDING, CENTER TOWER, SUITE 4100, BALTIMORE, MD 21224(410) 550-2044 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 3, 2025, Jun 3, 2019 (2 updates tracked since 2019).

About Kristen Mathias NPPES

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

KRISTEN MATHIAS (NPI 1962963066) is an individual rheumatology provider in Baltimore, Maryland, licensed in Maryland (D0103562) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1962963066
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameKRISTEN MATHIAS
Location Address5200 EASTERN AVE MASON F. LORD BUILDING, CENTER TOWER, SUITE 4100Baltimore, MD 21224
Mailing Address6201 Greenleigh AveBaltimore, MD 21220-2004 · (410) 933-6423
Phone(410) 550-2044
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 2019
Enumeration DateMarch 29, 2019
Last NPPES UpdateJune 3, 20252 updates tracked since enumeration
NPPES CertifiedJune 3, 2025
✔ NPI 1962963066 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in MD · D0103562
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal MedicineTaxonomy 207R00000X · License D0103562 (MD), 125.073947 (IL)
Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License D0103562 (MD)
5200 EASTERN AVE MASON F. LORD BUILDING, Baltimore, MD 21224
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Secondary Practice Locations 2

Location 15841 S Maryland AveChicago, IL 60637-1443 · Phone (773) 834-2239
Location 21800 Orleans StBaltimore, MD 21287-0010 · Phone (410) 955-5000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kristen Mathias is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID244561041
PECOS Enrollment IDI20250610004299
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.

Medicare Billing Reassignment

Medicare enrollment records show Kristen Mathias reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Johns Hopkins University
0.2 mi
Clinical Medical Laboratory
5501 HOPKINS BAYVIEW CIR, ROOM 1A20
Baltimore, MD 21224
  • Reassigned Medicare billing, Maryland enrollment
  • Also billed through NPI 1689162034 (Maryland)
  • 4,483 clinicians in this Medicare group
NPI 1306810619 (410) 550-3362

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21224 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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier35 claims35 services$15.32 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
2 suppliers19 claims19 services$909.62 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers47 claims47 services$65.61 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Kristen Mathias's NPI number?

The NPI number for Kristen Mathias is 1962963066. It was assigned to this individual provider in the NPPES registry on March 29, 2019.

Where is Kristen Mathias located?

Kristen Mathias practices at 5200 Eastern Ave Mason F. Lord Building Center Tower, Suite 4100, Baltimore, MD 21224. The listed phone number is (410) 550-2044.

What is Kristen Mathias's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Kristen Mathias enrolled in Medicare?

Yes. Kristen Mathias is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kristen Mathias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Mathias reassigns Medicare benefits to Johns Hopkins University (Baltimore, MD). The 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 Kristen Mathias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Kristen Mathias affiliated with any hospitals?

According to CMS data, Kristen Mathias is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.

When was this NPI record last updated?

The NPPES record for Kristen Mathias was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.