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KAREN LYNN AUSTIN M.D.
NPI 1649398926
Internal Medicine in Saint Louis, MO

Active since March 26, 2007PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD, SUITE 3016B, SAINT LOUIS, MO 63141(314) 251-6339(314) 251-4564 Get Directions Write a Review

NPPES record last updated: July 18, 2014. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Karen Lynn Austin M.d. NPPES

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

KAREN LYNN AUSTIN M.D. (NPI 1649398926) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2007022714) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Washington University School Of Medicine (2005).

NPPES Registry Identity

NPI1649398926
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN LYNN AUSTINCredential: M.D.
Location Address621 S NEW BALLAS RD, SUITE 3016BSaint Louis, MO 63141-8232
Mailing Address621 S New Ballas Rd, Suite 3016bSaint Louis, MO 63141-8232 · (314) 251-6339 · Fax (314) 251-4564
Phone(314) 251-6339
Fax(314) 251-4564
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2005
Enumeration DateMarch 26, 2007
Last NPPES UpdateJuly 18, 2014
✔ NPI 1649398926 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 · 2007022714
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, Saint Louis, MO 63141
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Other Identifiers 5

Medicaid1649398926MO
Medicare PIN133890007MO
Medicare PIN133360003MO
OtherP00640856MO · Railroad Medicare
Medicare PINMA4051008MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen Lynn Austin M.d. 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 ID3274606033
PECOS Enrollment IDI20080728000067
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 5

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.

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.
418 services166 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
110 services108 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.
58 services58 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
56 services55 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
42 services30 patients

Hospital Affiliations CMS Care Compare

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers25 claims25 services$69.93 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers14 claims14 services$33.73 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

STEPHANIE LYNN SHOREY WHNP-BC
Nurse Practitioner (Women's Health)
621 S NEW BALLAS RD, SUITE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. KATHRYN BOTNEY M.D.
Obstetrics & Gynecology
621 S NEW BALLAS RD, SUITE 4005
SAINT LOUIS, MO 63141
St. Louis County (314) 567-5016
HUILIN LI M.D.
Internal Medicine
621 S NEW BALLAS RD, SUITE 3016B
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
LUIS A GIUFFRA LLC
Psychiatry & Neurology (Psychiatry)
621 S NEW BALLAS RD, SUITE 398A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-7720
JOSEPH G HERRMANN MD LLC
Specialist
621 S NEW BALLAS RD, SUITE 419A
SAINT LOUIS, MO 63141
St. Louis County (314) 432-0056
KAREN KILO RN, CDE, RD
Nutritionist (Nutrition, Education)
621 S NEW BALLAS RD, SUITE 460A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-4330
KATINA M CANDEE PA-C
Physician Assistant
621 S NEW BALLAS RD, SUITE 483A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-2095
DR. PETER KONG-WOO YOON M.D.
Specialist
621 S NEW BALLAS RD, STE 297A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6364

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 Karen Austin's NPI number?

The NPI number for Karen Austin is 1649398926. It was assigned to this individual provider in the NPPES registry on March 26, 2007.

Where is Karen Austin located?

Karen Austin practices at 621 S New Ballas Rd Suite 3016B, Saint Louis, MO 63141. The listed phone number is (314) 251-6339.

What is Karen Austin's specialty?

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

Is Karen Austin enrolled in Medicare?

Yes. Karen Austin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Karen Austin accept?

Health plans from Medica list Karen Austin 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.

Is Karen Austin affiliated with any hospitals?

According to CMS data, Karen Austin is affiliated with Mercy Hospital St Louis.

When was this NPI record last updated?

The NPPES record for Karen Austin was last updated on July 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.