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DR. CONNOR MICHAEL LENIHAN MB, BCH, BAO
NPI 1659252542
Internal Medicine in Saint Louis, MO

Active since September 09, 2025PECOS Enrolled
621 S NEW BALLAS RD STE 3019B, SAINT LOUIS, MO 63141(314) 509-5305(314) 251-4454 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 18, 2025, Sep 9, 2025 (2 updates tracked since 2025).

About Dr. Connor Michael Lenihan Mb, Bch, Bao NPPES

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

DR. CONNOR MICHAEL LENIHAN MB, BCH, BAO (NPI 1659252542) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2025040883) and active in the NPI registry since September 2025. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659252542
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CONNOR MICHAEL LENIHANCredential: MB, BCH, BAO
Location Address621 S NEW BALLAS RD STE 3019BSaint Louis, MO 63141-8267
Mailing Address621 S New Ballas Rd Ste 3019bSaint Louis, MO 63141-8267 · (314) 509-5305 · Fax (314) 251-4454
Phone(314) 509-5305
Fax(314) 251-4454
Sole ProprietorYes
Enumeration DateSeptember 9, 2025
Last NPPES UpdateSeptember 18, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 18, 2025
✔ NPI 1659252542 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2025040883
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.
621 S NEW BALLAS RD STE 3019B, Saint Louis, MO 63141
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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. Connor Michael Lenihan Mb, Bch, Bao 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 63141 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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. CHRISTOPHER SAMAAN MD
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
ZACHARY DAVIS TAPIA MD
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
DR. JOHN LAWRENCE DAVIS DO
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
TRAVIS WILEY JACKSON MD
Dermatology
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
DR. TAYLOR LYNCH MD
Dermatology
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
MOHAMED MOUSTAFA KHAMIS MD
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
KARAM KHDEER DO
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305
ANDREW SABA
Internal Medicine
621 S NEW BALLAS RD STE 3019B
SAINT LOUIS, MO 63141
St. Louis County (314) 509-5305

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 Connor Lenihan's NPI number?

The NPI number for Connor Lenihan is 1659252542. It was assigned to this individual provider in the NPPES registry on September 9, 2025.

Where is Connor Lenihan located?

Connor Lenihan practices at 621 S New Ballas Rd Ste 3019B, Saint Louis, MO 63141. The listed phone number is (314) 509-5305.

What is Connor Lenihan's specialty?

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

Is Connor Lenihan enrolled in Medicare?

Yes. Connor Lenihan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Connor Lenihan was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.