LARRY C BUCK II DO
NPI 1851749139
Internal Medicine in Ferguson, MO

Active since May 27, 2016PECOS Enrolled
199 N FLORISSANT RD, FERGUSON, MO 63135(314) 449-9640(314) 449-9642 Get Directions Write a Review

NPPES record last updated: September 24, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 5, 2024, Aug 27, 2020 (2 updates tracked since 2020).

About Larry C Buck Ii Do NPPES

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

LARRY C BUCK II DO (NPI 1851749139) is an individual internal medicine provider in Ferguson, Missouri, licensed in Missouri (2019024147) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Louis, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (2016).

NPPES Registry Identity

NPI1851749139
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameLARRY C BUCK IICredential: DO
Location Address199 N FLORISSANT RDFerguson, MO 63135-1976
Mailing Address102 Woodmont Blvd Ste 600Nashville, TN 37205-5250 · (888) 987-1151
Fax(314) 449-9642
Sole ProprietorNo
Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 2016
Enumeration DateMay 27, 2016
Last NPPES UpdateSeptember 24, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 24, 2025
NPI 1851749139 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 · 2019024147
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.
199 N FLORISSANT RD, Ferguson, MO 63135

Secondary Practice Location 1

Location 13409 Union BlvdSaint Louis, MO 63115-1127 · Phone (314) 261-4834 · Fax (314) 383-3970

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Larry C Buck Ii Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3779907688
PECOS Enrollment IDI20200724002190
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.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
97 services46 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
87 services45 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
58 services37 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
45 services37 patients
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025
A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.
43 services39 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
40 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63135 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 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
199 N FLORISSANT RD
FERGUSON, MO 63135
Family Medicine
199 N FLORISSANT RD
FERGUSON, MO 63135
Nurse Practitioner (Family)
199 N FLORISSANT RD
FERGUSON, MO 63135
Internal Medicine
199 N FLORISSANT RD
FERGUSON, MO 63135
Nurse Practitioner (Family)
199 N FLORISSANT RD
FERGUSON, MO 63135
Nurse Practitioner (Family)
199 N FLORISSANT RD
FERGUSON, MO 63135

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 Larry Buck's NPI number?

The NPI number for Larry Buck is 1851749139. It was assigned to this individual provider in the NPPES registry on May 27, 2016.

Where is Larry Buck located?

Larry Buck practices at 199 N Florissant Rd, Ferguson, MO 63135. The listed phone number is (314) 449-9640.

What is Larry Buck's specialty?

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

Is Larry Buck enrolled in Medicare?

Yes. Larry Buck is registered in the Medicare PECOS enrollment system.

What insurance does Larry Buck accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 3 other insurers list Larry Buck as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Larry Buck was last updated on September 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.