MICHAEL ALEXANDER CHEAH MD
NPI 1386056547
Surgery - Plastic and Reconstructive Surgery in Pasadena, CA

NPI Status: Active since May 22, 2014

Contact Information

800 FAIRMOUNT AVE STE 319
PASADENA, CA
ZIP 91105
Phone: (626) 796-3373

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  • Individual
  • Male
  • Surgery
  • Plastic and Reconstructive Surgery
  • Opted-Out Medicare

About MICHAEL CHEAH

This page provides the complete NPI Profile along with additional information for Michael Cheah, a provider established in Pasadena, California with a medical specialization in Surgery, focusing in plastic and reconstructive surgery . The healthcare provider is registered in the NPI registry with number 1386056547 assigned on May 2014. The practitioner's primary taxonomy code is 2086S0122X with license number A186811 (CA). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1386056547
Provider Name
MICHAEL ALEXANDER CHEAH MD
Gender
Male
Entity Type
Individual
Location Address
800 FAIRMOUNT AVE STE 319 PASADENA, CA 91105
Location Phone
(626) 796-3373
Mailing Address
800 FAIRMOUNT AVE STE 319 PASADENA, CA 91105
Mailing Phone
(626) 796-3373
Is Sole Proprietor?
No
Enumeration Date
05-22-2014
Last Update Date
03-18-2024
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The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Michael Cheah opted out of Medicare effective on 05-15-2025 until 05-15-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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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

Surgery Plastic and Reconstructive Surgery

Taxonomy Code
2086S0122X
Type
Allopathic & Osteopathic Physicians
License No.
A186811
License State
CA
Taxonomy Description
A surgeon who specializes in plastic and reconstructive surgery.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1208600000XAllopathic & Osteopathic Physicians

Surgery

0116026740 (VA)

Medicare Participation & PECOS Enrollment Status

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.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 05-15-2025

  • Opt-Out End Date: 05-15-2027

  • Eligible to Order and Refer? No

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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 1386056547, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
7
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 8 → 16 → 7 0 → 0 6 → 12 → 3 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 0 + 5 + 1 + 2 + 5 + 8 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1386056547.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386056547, enumerated as an "individual" on May 22, 2014.

The provider is located at 800 FAIRMOUNT AVE STE 319 PASADENA, CA 91105 and the phone number is (626) 796-3373.

Surgery with taxonomy code 2086S0122X and a focus in Plastic and Reconstructive Surgery.