GRACE H. CHUN MD
NPI 1639243959
Internal Medicine in Rancho Cordova, CA

NPI Status: Active since November 20, 2006

Contact Information

10725 INTERNATIONAL DR
RANCHO CORDOVA, CA
ZIP 95670
Phone: (916) 631-3000

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  • Individual
  • Female
  • Years of Experience 30
  • Internal Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GRACE CHUN

This page provides the complete NPI Profile along with additional information for Grace Chun, an internist established in Rancho Cordova, California with a medical specialization in Internal Medicine and more than 30 years of experience. She graduated from Tulane University School Of Medicine in 1996. The healthcare provider is registered in the NPI registry with number 1639243959 assigned on November 2006. The practitioner's primary taxonomy code is 207R00000X with license number A64887 (CA). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1639243959
Provider Name
GRACE H. CHUN MD
Gender
Female
Entity Type
Individual
Location Address
10725 INTERNATIONAL DR RANCHO CORDOVA, CA 95670
Location Phone
(916) 631-3000
Mailing Address
1800 HARRISON ST FL 7 OAKLAND, CA 94612
Mailing Phone
(510) 625-6262
Medical School Name
TULANE UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
1996
Is Sole Proprietor?
No
Enumeration Date
11-20-2006
Last Update Date
12-22-2021
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An internist like Grace Chun is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
A64887
License State
CA
Taxonomy Description
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00A648870MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Grace Chun is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Grace Chun is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 2668656885

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20110413000609

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $34.3 for a new patient copayment and $26.48 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 95670 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $137.2
  • Minimum New Patient Price $60.44
  • Maximum New Patient Price $180.85
  • Average New Patient Copayment $34.3
  • Minimum New Patient Copayment $15.11
  • Maximum New Patient Copayment $45.21

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $105.95
  • Minimum Established Patient Price $19.88
  • Maximum Established Patient Price $148.15
  • Average Established Patient Copayment $26.48
  • Minimum Established Patient Copayment $4.97
  • Maximum Established Patient Copayment $37.03

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for GRACE H. CHUN MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1639243959
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2669446910
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 6 + 6 + 9 + 4 + 4 + 6 + 9 + 1 + 0 + 24 = 71
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 71 = 99

The NPI number 1639243959 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1215951199DR. ARIF M SEYAL MD
Individual
Allergy & Immunology10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3088
1912085606 CATHERINE I. VIGRAN MD
Individual
Pediatrics10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1043398753 JANE A. STOINOFF MD
Individual
Pediatrics10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1457439119 ANNE K. LAHUE MD
Individual
Obstetrics & Gynecology10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1568540235 ROBERT P. DIAMOND MD
Individual
Psychiatry & Neurology (Child & Adolescent Psychiatry)10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1487732152 JACALYN D. MCKAY MD
Individual
Obstetrics & Gynecology10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1316025059 ROBERT W. BONAR MD
Individual
Pediatrics10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1275611923 CARY S. HART MD
Individual
Pediatrics10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1982782652 THOMAS P. KIDWELL MD
Individual
Ophthalmology10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1114005824 JAMES THADDEUS FOSTER MD
Individual
Internal Medicine10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1144308818 RANDAL W. ANDERSON MD
Individual
Dermatology10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1659459337 DONALD D. FORRESTER MD
Individual
Family Medicine10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1972682607 ROBERT H. RICHTER MD
Individual
Internal Medicine10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1992879597 LINDA L. BARYLIUK MD
Individual
Hospitalist10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1922167865MS. JANET MARIE DONEGAN NP
Individual
Registered Nurse10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3080
1972663755 SUSAN KIM-ALMER BS
Individual
Physical Therapist10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-2060
1245397769DR. PHILIP N. CLAR PH.D.
Individual
Psychologist (Clinical)10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-2455
1194875997 GARY M. CEDERLIND DO
Individual
Hospitalist10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 631-3000
1326190745MS. DOMONIC L KAY MFT
Individual
Marriage & Family Therapist10725 INTERNATIONAL DR KAISER PERMANENTE
RANCHO CORDOVA, CA 95670
(916) 631-2406
1780736033 ROBERT THOMAS TRUMM O.D.
Individual
Optometrist10725 INTERNATIONAL DR
RANCHO CORDOVA, CA 95670
(916) 614-4015

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639243959, enumerated in the NPI registry as an "individual" on November 20, 2006

The provider is located at 10725 International Dr Rancho Cordova, Ca 95670 and the phone number is (916) 631-3000

The provider's speciality is Internal Medicine with taxonomy code 207R00000X

The provider has more than 30 years of experience. She graduated from Tulane University School Of Medicine in 1996.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $137.2 with an average copayment of $34.3 for new patient appointments. Established patients should expect a typical charge of $105.95 and an average copayment of 26.48. Please review your insurance plan or contact the provider directly to determine your specific costs.

This NPI record was last updated on November 20, 2006. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.