DR. KARL TSCHA-NING SUN MD
NPI 1235131061
Internal Medicine - Cardiovascular Disease in La Mesa, CA

Active since August 11, 2005PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
8851 CENTER DR, STE 401, LA MESA, CA 91942(619) 668-1550(619) 668-1554 Get Directions Write a Review

NPPES record last updated: April 23, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Karl Tscha-ning Sun Md NPPES

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

DR. KARL TSCHA-NING SUN MD (NPI 1235131061) is an individual cardiovascular disease provider in La Mesa, California, licensed in California (A68612) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1982).

NPPES Registry Identity

NPI1235131061
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. KARL TSCHA-NING SUNCredential: MD
Location Address8851 CENTER DR, STE 401La Mesa, CA 91942-3017
Mailing Address8851 Center Dr, Ste 401La Mesa, CA 91942-3017 · (760) 598-8058 · Fax (760) 598-8078
Fax(619) 668-1554
Sole ProprietorNo
Medical School CMSOtherGraduated 1982
Enumeration DateAugust 11, 2005
Last NPPES UpdateApril 23, 2010
NPI 1235131061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in CA · A68612
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedNuclear Medicine · Nuclear CardiologyTaxonomy 207UN0901X · License A68612 (CA)
8851 CENTER DR, La Mesa, CA 91942

Other Identifiers 5

Medicare UPINH01889CA
Medicare PINWA68612ACA
Medicaid00A686120CA
Other00A686120CA · Blue Shield
Other110185464CA · Rr Medicare

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

Dr. Karl Tscha-ning Sun 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 ID8022132828
PECOS Enrollment IDI20100831000764
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 23

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.

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458
This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.
755 services79 patients
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457
This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.
720 services84 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.
678 services231 patients
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454
This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.
598 services74 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.
542 services96 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.
212 services35 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91942 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality100
Improvement Activities40
Cost84.14

Referred Medical Equipment & Supplies CMS DME claims 4

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
4 suppliers13 claims35 services$5.98 avg. paid by Medicare
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
2 suppliers22 claims22 services$60.13 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers22 claims22 services$30.52 avg. paid by Medicare
Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds K0823
DME-Wheelchairs · category DD009N
1 supplier12 claims12 services$136.68 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.

Pharmacist
8851 CENTER DR, STE 110
LA MESA, CA 91942
Urology
8851 CENTER DR, SUITE 502
LA MESA, CA 91942
Psychiatry & Neurology (Neurology)
8851 CENTER DR, SUITE 603
LA MESA, CA 91942
Physician Assistant
8851 CENTER DR, SUITE 505
LA MESA, CA 91942
Neurological Surgery
8851 CENTER DR
LA MESA, CA 91942
Internal Medicine
8851 CENTER DR, SUITE 408
LA MESA, CA 91942
Nurse Practitioner (Women's Health)
8851 CENTER DR, SUITE 500
LA MESA, CA 91942
Dentist (General Practice)
8851 CENTER DR, SUITE 301
LA MESA, CA 91942

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 Karl Sun's NPI number?

The NPI number for Karl Sun is 1235131061. It was assigned to this individual provider in the NPPES registry on August 11, 2005.

Where is Karl Sun located?

Karl Sun practices at 8851 Center Dr Ste 401, La Mesa, CA 91942. The listed phone number is (619) 668-1550.

What is Karl Sun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Karl Sun enrolled in Medicare?

Yes. Karl Sun 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.

When was this NPI record last updated?

The NPPES record for Karl Sun was last updated on April 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.