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MICHAEL ZANG MD LLC
NPI 1457927279
Internal Medicine in Catonsville, MD

Active since June 02, 2021CLIA 21D2223263 · Waiver
700 GEIPE RD STE 275, CATONSVILLE, MD 21228(443) 636-3100(443) 636-3101 Get Directions Write a Review

NPPES record last updated: June 2, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael Zang Md Llc NPPES

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

MICHAEL ZANG MD LLC (NPI 1457927279) is a healthcare organization registered as an internal medicine in Catonsville, Maryland and active in the NPI registry since June 2021. The organization holds a CLIA Waiver certificate valid through May 4, 2027 and lists Michael D Zang, Physician, as its authorized official.

NPPES Registry Identity

NPI1457927279
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameMICHAEL ZANG MD LLC
Location Address700 GEIPE RD STE 275Catonsville, MD 21228-4152
Mailing Address700 Geipe Rd Ste 275Catonsville, MD 21228-4152 · (443) 636-3100 · Fax (443) 636-3101
Phone(443) 636-3100
Fax(443) 636-3101
Organization SubpartNo
Authorized OfficialMichael D ZangPhysician · (443) 636-3100
Enumeration DateJune 2, 2021
NPPES CertifiedJune 2, 2021
✔ NPI 1457927279 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.
700 GEIPE RD STE 275, Catonsville, MD 21228
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Zang Md Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Michael Zang MD LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Michael Zang, M.D.
Internal Medicine
NPI 1184681660
700 GEIPE RD STE 275
Catonsville, MD 21228
(443) 636-3100
✔ PECOS✔ Accepts MedicareSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 21D2223263

Michael Zang MD LLC · Catonsville, MD
Active · expires May 4, 2027
CLIA Number21D2223263
Laboratory TypePhysician Office
Certificate Effective DateMay 5, 2025
Certificate Expiration DateMay 4, 2027
Laboratory DirectorMichael D. Zang
Laboratory Phone(443) 636-3100
Laboratory LocationMichael Zang MD LLC700 Geipe Rd Ste 275, Catonsville, MD 21228
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Michael Zang MD LLC's NPI number?

The NPI number for Michael Zang MD LLC is 1457927279. It was assigned to this organization in the NPPES registry on June 2, 2021.

Where is Michael Zang MD LLC located?

Michael Zang MD LLC is located at 700 Geipe Rd Ste 275, Catonsville, MD 21228. The listed phone number is (443) 636-3100.

What is Michael Zang MD LLC's specialty?

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

Is Michael Zang MD LLC enrolled in Medicare?

Yes. Michael Zang MD LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Michael Zang MD LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Michael Zang MD LLC. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Michael Zang MD LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 21D2223263) is associated with this NPI, valid through May 4, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Michael Zang MD LLC was last updated on June 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.