CHAUDHARY MOBIN KHAN MD
NPI 1649252461
Internal Medicine - Gastroenterology in O Fallon, MO

Q: What is Chaudhary Khan's NPI number?

The NPI number for Chaudhary Khan is 1649252461. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Q: What is Chaudhary Khan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Chaudhary Khan was last updated on April 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.

Active since November 17, 2005PECOS EnrolledAccepts Medicare Assignment

20 PROGRESS POINT PKWY STE 206, O FALLON, MO 63368(636) 344-1073 Get Directions Write a Review

NPPES record last updated: April 2, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Chaudhary Mobin Khan Md NPPES

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

CHAUDHARY MOBIN KHAN MD (NPI 1649252461) is an individual gastroenterology provider in O Fallon, Missouri, licensed in Missouri (111121) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Missouri Baptist Medical Center, and maintains a secondary practice location in O Fallon.

NPPES Registry Identity

NPI1649252461

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameCHAUDHARY MOBIN KHANCredential: MD

Location Address20 PROGRESS POINT PKWY STE 206O Fallon, MO 63368-2207

Mailing Address20 Progress Point Pkwy Ste 206O Fallon, MO 63368-2207 · (636) 344-1073

Phone(636) 344-1073

Sole ProprietorNo

Medical School CMSSaint Louis University School Of MedicineGraduated 1999

Enumeration DateNovember 17, 2005

Last NPPES UpdateApril 2, 2021

NPPES CertifiedMarch 12, 2021

✔ NPI 1649252461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MO · 111121

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal Medicine · HepatologyTaxonomy 207RI0008X · License 111121 (MO)

20 PROGRESS POINT PKWY STE 206, O Fallon, MO 63368

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Secondary Practice Location 1

Location 120 Progress Point Pkwy, Ste 108O Fallon, MO 63368-2206 · Phone (636) 344-1073 · Fax (636) 344-1075

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Chaudhary Mobin Khan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678699907

PECOS Enrollment IDI20100923001448

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 Chaudhary Khan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Physician Groups Lc

13 mi

Multi-Specialty

670 MASON RIDGE CENTER DR STE 300
Saint Louis, MO 63141

Reassigned Medicare billing, Missouri enrollment
611 clinicians in this Medicare group

NPI 1285664268 (314) 996-7644

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

Areas of Expertise CMS Part B claims 11

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.

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

140 services139 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

116 services113 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

94 services90 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

60 services44 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

52 services51 patients

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.

51 services45 patients

Hospital Affiliations CMS Care Compare 3

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

Missouri Baptist Medical Center

Acute Care Hospitals · Town And Country, MO

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260108

Location3015 N Ballas RdTown And Country, MO 63131 · St. Louis County

Emergency services Birthing friendly

Barnes-Jewish St Peters Hospital

Acute Care Hospitals · Saint Peters, MO

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260191

Location10 Hospital DrSaint Peters, MO 63376 · St. Charles County

Emergency services

Progress West Hospital

Acute Care Hospitals · O Fallon, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260219

Location2 Progress Point PkwyO Fallon, MO 63368 · St. Charles County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63368 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.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by Dawna ***** September 15, 2025

5/5

I'm so happy to have found Dr. Kahn! He helped me understand why my gastrointestinal system is sensitive and what chronic stress can do to your organs, This propelled me to dive deeper into the root cause of my issues. Now, I have the knowledge, tools, and gastroenterologist, to live a full life with this stomach and nervous system I have! Thank you for looking deeper, Dr. Kahn. Be Blessed!

Provider 5/5 Office Staff 5/5

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Other Providers at the Same Location NPPES 18

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

ELDAD SHAUL BIALECKI M.D.

Internal Medicine (Gastroenterology)