MARYLAND MEDICAL GROUP LTD
NPI 1013170679
Internal Medicine in Chesterfield, MO

Q: What is Maryland Medical Group Ltd's NPI number?

The NPI number for Maryland Medical Group Ltd is 1013170679. It was assigned to this organization in the NPPES registry on July 3, 2008.

Q: What is Maryland Medical Group Ltd's specialty?

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

Active since July 03, 2008CLIA 26D0438358 · Microscopy

222 S WOODS MILL RD, SUITE 350N, CHESTERFIELD, MO 63017(314) 205-6557 Get Directions Write a Review

NPPES record last updated: July 3, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Maryland Medical Group Ltd NPPES

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

MARYLAND MEDICAL GROUP LTD (NPI 1013170679) is a healthcare organization registered as an internal medicine in Chesterfield, Missouri and active in the NPI registry since July 2008. The organization holds a CLIA Microscopy certificate valid through April 21, 2027 and lists William G Bowen, President, as its authorized official.

NPPES Registry Identity

NPI1013170679

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameMARYLAND MEDICAL GROUP LTD

Location Address222 S WOODS MILL RD, SUITE 350NChesterfield, MO 63017-3625

Mailing Address222 S Woods Mill Rd, Suite 350nChesterfield, MO 63017-3625 · (314) 205-6557

Phone(314) 205-6557

Organization SubpartNo

Authorized OfficialWilliam G BowenPresident · (314) 367-3113

Enumeration DateJuly 3, 2008

✔ NPI 1013170679 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ 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.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X

Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X

Also ListedInternal Medicine · RheumatologyTaxonomy 207RR0500X

222 S WOODS MILL RD, Chesterfield, MO 63017

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Other Identifiers 1

Medicare UPIN000010056

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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 for Provider-Performed Microscopy Procedures (PPMP) 26D0438358

Maryland Medical Group, Ltd · Saint Louis, MO

Active · expires Apr 21, 2027

CLIA Number26D0438358

Laboratory TypePhysician Office

Certificate Effective DateApril 22, 2025

Certificate Expiration DateApril 21, 2027

Laboratory DirectorScott L. Groesch

Laboratory Phone(314) 367-3113

Laboratory LocationMaryland Medical Group, Ltd1110 Highlands Plaza Drive East, Ste 375, Saint Louis, MO 63110

CLIA data matches this NPI record on: Name Phone

This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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.

MS. KIMBERLY C GRUNZINGER MSN, RN, ACNS-BC

Clinical Nurse Specialist (Adult Health)

222 S WOODS MILL RD, SUITE 480 N
CHESTERFIELD, MO 63017

St. Louis County (314) 576-7343

RACHEL LYNN FISHMAN OIKNINE M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

222 S WOODS MILL RD, SUITE 410N
CHESTERFIELD, MO 63017

St. Louis County (314) 469-6224

MARIA THERESA WEIR

Nurse Practitioner (Adult Health)

222 S WOODS MILL RD, SUITE 410N
CHESTERFIELD, MO 63017

St. Louis County (314) 469-6224

JOHN BEST MD

Internal Medicine (Pulmonary Disease)

222 S WOODS MILL RD, SUITE 310 NORTH
CHESTERFIELD, MO 63017

St. Louis County (314) 576-6700

WEST COUNTY OPHTHALMOLOGY, INC

Ophthalmology

222 S WOODS MILL RD, SUITE 660N
CHESTERFIELD, MO 63017

St. Louis County (314) 878-9902

TARISAI SHARON NYAHODA MD

Internal Medicine (Geriatric Medicine)

222 S WOODS MILL RD
CHESTERFIELD, MO 63017

St. Louis County (314) 205-6050

ZOE LEYH DO

Internal Medicine (Infectious Disease)

222 S WOODS MILL RD
CHESTERFIELD, MO 63017

St. Louis County (314) 205-6050

DR. JERROLD J LANDER M.D.

Internal Medicine (Gastroenterology)

222 S WOODS MILL RD, SUITE 750
CHESTERFIELD, MO 63017

St. Louis County (314) 205-6600

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 Maryland Medical Group Ltd's NPI number?

The NPI number for Maryland Medical Group Ltd is 1013170679. It was assigned to this organization in the NPPES registry on July 3, 2008.

Where is Maryland Medical Group Ltd located?

Maryland Medical Group Ltd is located at 222 S Woods Mill Rd Suite 350N, Chesterfield, MO 63017. The listed phone number is (314) 205-6557.

What is Maryland Medical Group Ltd's specialty?

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

Does Maryland Medical Group Ltd hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 26D0438358) is associated with this NPI, valid through April 21, 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 Maryland Medical Group Ltd was last updated on July 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.