J MICHAEL KARST M.D.
NPI 1194759662
Internal Medicine in Montgomery, AL

Active since July 10, 2006PECOS EnrolledAccepts Medicare Assignment
89.69/100
CMS Quality Rating
4485 ATLANTA HWY, MONTGOMERY, AL 36109(334) 272-4302(334) 272-0195 Get Directions Write a Review

NPPES record last updated: March 8, 2024. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Mar 8, 2024, Feb 3, 2017 (2 updates tracked since 2017).

About J Michael Karst M.d. NPPES

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

J MICHAEL KARST M.D. (NPI 1194759662) is an individual internal medicine provider in Montgomery, Alabama, licensed in Alabama (13546) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Alabama School Of Medicine (1986).

NPPES Registry Identity

NPI1194759662
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJ MICHAEL KARSTCredential: M.D.
Location Address4485 ATLANTA HWYMontgomery, AL 36109-3102
Mailing Address4485 Atlanta HwyMontgomery, AL 36109-3102 · (334) 272-4302 · Fax (334) 272-0195
Fax(334) 272-0195
Sole ProprietorYes
Medical School CMSUniversity Of Alabama School Of MedicineGraduated 1986
Enumeration DateJuly 10, 2006
Last NPPES UpdateMarch 8, 20242 updates tracked since enumeration
NPPES CertifiedMarch 8, 2024
NPI 1194759662 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in AL · 13546
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.
4485 ATLANTA HWY, Montgomery, AL 36109

Other Identifiers 3

Other51081116AL · Blue Cross Blue Shield
Other200006016GA · Railroad Medicare
Medicaid529001630AL

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 and accepts Medicare assignment

J Michael Karst 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 ID6002947967
PECOS Enrollment IDI20100622000391
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 24

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 straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
602 services329 patients
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490
Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.
574 services67 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.
523 services309 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
360 services126 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.
352 services283 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.
304 services197 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 36109 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
$122.31 typical visit price
range $52.65 – $161.63
Typical copayment $30.57 (range $13.16 – $40.40)
Most-billed visit code 99204
Established Patient
$93.72 typical visit price
range $16.56 – $131.65
Typical copayment $23.43 (range $4.14 – $32.91)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.69/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality81.3
Improvement Activities40
Cost90.56

Reported Quality Measures

Appropriate Treatment for Upper Respiratory Infection (URI)
31%48 patients2/55-star benchmark: 100%
Breast Cancer Screening
12%486 patients1/55-star benchmark: 93%
Colorectal Cancer Screening
49%1,077 patients3/55-star benchmark: 88%
Controlling High Blood Pressure
55%1,011 patients3/55-star benchmark: 91%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
20%298 patients4/55-star benchmark: 91%
Documentation of Current Medications in the Medical Record
97%4,871 patients4/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
91%1,852 patients4/55-star benchmark: 98%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 57% · 1,309 patients
Patients screened: 60% · 1,309 patients
65%117 patients3/55-star benchmark: 100%
Use of High-Risk Medications in Older Adults
Lower rates are better for this measure.
Patients appropriateDiagnosis: 9% · 957 patients
Patients totalRate: 31% · 957 patients
32%957 patients1/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 11

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
14 suppliers37 claims116 services$6.58 avg. paid by Medicare
Normal, low and high calibrator solution / chips A4256
DME-Other DME · category DE000N
3 suppliers11 claims11 services$2.93 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers17 claims28 services$1.17 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
6 suppliers11 claims11 services$19.50 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
6 suppliers11 claims11 services$15.59 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
7 suppliers15 claims87 services$2.35 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

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

Internal Medicine
4485 ATLANTA HWY
MONTGOMERY, AL 36109

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 J Karst's NPI number?

The NPI number for J Karst is 1194759662. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is J Karst located?

J Karst practices at 4485 Atlanta Hwy, Montgomery, AL 36109. The listed phone number is (334) 272-4302.

What is J Karst's specialty?

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

Is J Karst enrolled in Medicare?

Yes. J Karst 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 J Karst accept?

Health plans from Blue Cross and Blue Shield of Alabama list J Karst 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 J Karst was last updated on March 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.