DR. HONG-AN JAN M.D.
NPI 1255332979
Specialist in Garden Grove, CA

NPI Status: Active since August 03, 2005

Contact Information

12555 GARDEN GROVE BLVD
SUITE 202
GARDEN GROVE, CA
ZIP 92843
Phone: (714) 538-1288
Fax: (714) 538-4913

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  • Individual
  • Male
  • Years of Experience 59
  • Specialist
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • CLIA Number: 05D0578845
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 08-31-2026

About HONG-AN JAN

This page provides the complete NPI Profile along with additional information for Hong-an Jan, a provider established in Garden Grove, California with a medical specialization in Specialist and more than 59 years of experience. The healthcare provider is registered in the NPI registry with number 1255332979 assigned on August 2005. The practitioner's primary taxonomy code is 174400000X with license number A31743 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1255332979
Provider Name
DR. HONG-AN JAN M.D.
Gender
Male
Entity Type
Individual
Location Address
12555 GARDEN GROVE BLVD SUITE 202 GARDEN GROVE, CA 92843
Location Phone
(714) 538-1288
Location Fax
(714) 538-4913
Mailing Address
12555 GARDEN GROVE BLVD SUITE 202 GARDEN GROVE, CA 92843
Mailing Phone
(714) 538-1288
Mailing Fax
(714) 538-4913
Medical School Name
OTHER
Graduation Year
1967
Is Sole Proprietor?
Yes
Enumeration Date
08-03-2005
Last Update Date
10-05-2012
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
A31743
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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
A31743MEDICARE ID-TYPE UNSPECIFIED (04)CA 
00A317430MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Hong-an Jan 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.

Hong-an Jan 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: 5193987816

    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: I20120425000614

    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

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D0578845
Facility Type
Physician Office
Certificate Effective Date
September 01, 2024
Certificate Expiration Date
August 31, 2026
Laboratory Director
HONG AN JAN
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Hong-an Jan in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1255332979, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
3
Unchanged
Pos 7
2
Doubled → 4
Pos 8
9
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 3 → 6 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 0 + 5 + 6 + 3 + 4 + 9 + 1 + 4 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1255332979.

Other Providers at the Same Location


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

Internal Medicine
12555 GARDEN GROVE BLVD, SUITE 301
GARDEN GROVE, CA 92843
Obstetrics & Gynecology
12555 GARDEN GROVE BLVD, SUITE 301
GARDEN GROVE, CA 92843
Specialist
12555 GARDEN GROVE BLVD, SUITE 302
GARDEN GROVE, CA 92843
Dentist (General Practice)
12555 GARDEN GROVE BLVD, SUITE 308
GARDEN GROVE, CA 92843
Pharmacist
12555 GARDEN GROVE BLVD, #102
GARDEN GROVE, CA 92843
Surgery
12555 GARDEN GROVE BLVD, #303
GARDEN GROVE, CA 92843
Psychiatry & Neurology (Psychiatry)
12555 GARDEN GROVE BLVD, #305
GARDEN GROVE, CA 92843
Family Medicine
12555 GARDEN GROVE BLVD, #507
GARDEN GROVE, CA 92843
Radiology (Diagnostic Radiology)
12555 GARDEN GROVE BLVD, SUITE 103
GARDEN GROVE, CA 92843
Psychiatry & Neurology (Neurology)
12555 GARDEN GROVE BLVD, SUITE 305
GARDEN GROVE, CA 92843
Obstetrics & Gynecology (Maternal & Fetal Medicine)
12555 GARDEN GROVE BLVD, SUITE 203
GARDEN GROVE, CA 92843
Physician Assistant
12555 GARDEN GROVE BLVD, SUITE 206
GARDEN GROVE, CA 92843
Obstetrics & Gynecology (Obstetrics)
12555 GARDEN GROVE BLVD, #306
GARDEN GROVE, CA 92843
Clinic/Center
12555 GARDEN GROVE BLVD, #404
GARDEN GROVE, CA 92843
Internal Medicine (Infectious Disease)
12555 GARDEN GROVE BLVD, STE 405
GARDEN GROVE, CA 92843
Internal Medicine (Infectious Disease)
12555 GARDEN GROVE BLVD, STE 405
GARDEN GROVE, CA 92843
Pediatrics
12555 GARDEN GROVE BLVD, SUITE 404
GARDEN GROVE, CA 92843
Physician Assistant (Medical)
12555 GARDEN GROVE BLVD, SUITE 206
GARDEN GROVE, CA 92843
Physician Assistant
12555 GARDEN GROVE BLVD, #206
GARDEN GROVE, CA 92843
Psychiatry & Neurology (Sleep Medicine)
12555 GARDEN GROVE BLVD, SUITE 307
GARDEN GROVE, CA 92843

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255332979, enumerated as an "individual" on August 03, 2005.

The provider is located at 12555 GARDEN GROVE BLVD SUITE 202 GARDEN GROVE, CA 92843 and the phone number is (714) 538-1288.

Specialist with taxonomy code 174400000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.