JOHNSON TAI CHING
NPI 1720687767
Pharmacist in Boston, MA

NPI Status: Active since October 21, 2020

Contact Information

800 WASHINGTON ST
BOSTON, MA
ZIP 02111
Phone: (617) 636-5000

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  • Individual
  • Male
  • Years of Experience 9
  • Pharmacist
  • May Accept Medicare Approved Payment
  • PECOS Enrolled

About JOHNSON CHING

This page provides the complete NPI Profile along with additional information for Johnson Ching, a provider established in Boston, Massachusetts with a medical specialization in Pharmacist and more than 9 years of experience. The healthcare provider is registered in the NPI registry with number 1720687767 assigned on October 2020. The practitioner's primary taxonomy code is 183500000X with license number PH239687 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1720687767
Provider Name
JOHNSON TAI CHING
Gender
Male
Entity Type
Individual
Location Address
800 WASHINGTON ST BOSTON, MA 02111
Location Phone
(617) 636-5000
Mailing Address
800 WASHINGTON ST BOSTON, MA 02111
Medical School Name
OTHER
Graduation Year
2017
Is Sole Proprietor?
No
Enumeration Date
10-21-2020
Last Update Date
09-10-2025
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A pharmacist like Johnson Ching fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

Location Map

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

Pharmacist

Taxonomy Code
183500000X
Type
Pharmacy Service Providers
License No.
PH239687
License State
MA
Taxonomy Description
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.

Medicare Participation & PECOS Enrollment Status

Johnson Ching is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

Johnson Ching 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: Durable Medical Equipment (DME).

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: 7517455371

    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: I20251023000776

    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? Maybe

    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: No

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

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: No

Reviews for JOHNSON TAI CHING

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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 1720687767, 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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 2 → 4 6 → 12 → 3 7 → 14 → 5 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 2 + 8 + 1 + 4 + 7 + 1 + 2 + 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 1720687767.

Other Providers at the Same Location


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

Internal Medicine
800 WASHINGTON ST, BOX 63
BOSTON, MA 02111
Psychiatry & Neurology (Psychosomatic Medicine)
800 WASHINGTON ST, TUFTS MEDICAL CENTER BOX 1007
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, DEPT. OF PEDIATRICS
BOSTON, MA 02111
Psychiatry & Neurology (Neurology)
800 WASHINGTON ST, #314
BOSTON, MA 02111
Pathology (Clinical Pathology/Laboratory Medicine)
800 WASHINGTON ST, BOX 115
BOSTON, MA 02111
Nurse Practitioner
800 WASHINGTON ST, GI LIVER GROUP P.C.TUFTS MEDICAL CENTER
BOSTON, MA 02111
Pediatrics (Developmental - Behavioral Pediatrics)
800 WASHINGTON ST, BOX 334
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, BOX 286 DEPT. OF PEDIATRICS
BOSTON, MA 02111
Specialist
800 WASHINGTON ST, # 450
BOSTON, MA 02111
Anesthesiology
800 WASHINGTON ST, TUFT-NEMC BOX 298
BOSTON, MA 02111
Pediatrics (Developmental - Behavioral Pediatrics)
800 WASHINGTON ST, CCSN # 334
BOSTON, MA 02111
Pediatrics (Pediatric Hematology-Oncology)
800 WASHINGTON ST, FLOATING HOSPITAL FOR CHILDREN AT TUFTS MEDICAL CENTER
BOSTON, MA 02111
Surgery
800 WASHINGTON ST, BOX 7105
BOSTON, MA 02111
Pediatrics (Pediatric Pulmonology)
800 WASHINGTON ST, TMC BOX# 343
BOSTON, MA 02111
Pediatrics (Pediatric Cardiology)
800 WASHINGTON ST, #313
BOSTON, MA 02111
Orthopaedic Surgery (Hand Surgery)
800 WASHINGTON ST, BOX 26
BOSTON, MA 02111
Pediatrics
800 WASHINGTON ST, GENERAL PEDIATRICS - FLOATING HOSPITAL FOR CHILDREN
BOSTON, MA 02111
Pediatrics (Neonatal-Perinatal Medicine)
800 WASHINGTON ST
BOSTON, MA 02111
Emergency Medicine
800 WASHINGTON ST, BOX #311
BOSTON, MA 02111
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
800 WASHINGTON ST
BOSTON, MA 02111

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720687767, enumerated as an "individual" on October 21, 2020.

The provider is located at 800 WASHINGTON ST BOSTON, MA 02111 and the phone number is (617) 636-5000.

Pharmacist with taxonomy code 183500000X.