DR. ANN ZHENG MD
NPI 1215677679
Psychiatry & Neurology - Neurology in Paoli, PA

NPI Status: Active since March 31, 2022

Contact Information

255 W LANCASTER AVE
PAOLI, PA
ZIP 19301
Phone: (610) 647-8000

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  • Individual
  • Female
  • Psychiatry & Neurology
  • Neurology

About ANN ZHENG

This page provides the complete NPI Profile along with additional information for Ann Zheng, a provider established in Paoli, Pennsylvania with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1215677679 assigned on March 2022. The practitioner's primary taxonomy code is 2084N0400X with license number MD494226 (PA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1215677679
Provider Name
DR. ANN ZHENG MD
Gender
Female
Entity Type
Individual
Location Address
255 W LANCASTER AVE PAOLI, PA 19301
Location Phone
(610) 647-8000
Mailing Address
255 W LANCASTER AVE PAOLI, PA 19301
Is Sole Proprietor?
No
Enumeration Date
03-31-2022
Last Update Date
06-25-2026
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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

Psychiatry & Neurology Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
MD494226
License State
PA
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

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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 1215677679, 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
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
6
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 1 → 2 6 → 12 → 3 7 → 14 → 5 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 + 2 + 5 + 1 + 2 + 7 + 1 + 4 + 6 + 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 1215677679.

Other Providers at the Same Location


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

Internal Medicine
255 W LANCASTER AVE, MOB II SUITE 121
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Emergency Medicine
255 W LANCASTER AVE
PAOLI, PA 19301
Internal Medicine
255 W LANCASTER AVE, 120 PAOLI MOB II
PAOLI, PA 19301
Internal Medicine
255 W LANCASTER AVE, 121 PAOLI MOB II
PAOLI, PA 19301
Surgery
255 W LANCASTER AVE, MOB III SUITE 332
PAOLI, PA 19301
Surgery
255 W LANCASTER AVE, MOB III, SUITE 332
PAOLI, PA 19301
Radiology (Diagnostic Radiology)
255 W LANCASTER AVE
PAOLI, PA 19301
Physician Assistant
255 W LANCASTER AVE
PAOLI, PA 19301
Obstetrics & Gynecology
255 W LANCASTER AVE, SUITE 222 PAOLI MEDICAL BUILDING II
PAOLI, PA 19301
Internal Medicine
255 W LANCASTER AVE, SUITE 200
PAOLI, PA 19301
Internal Medicine (Cardiovascular Disease)
255 W LANCASTER AVE, PAOLI MEDICAL BLDG 3 SUITE 234
PAOLI, PA 19301
Internal Medicine (Pulmonary Disease)
255 W LANCASTER AVE, SUITE 124
PAOLI, PA 19301
Pediatrics
255 W LANCASTER AVE, MOB 1 STE 101
PAOLI, PA 19301
Radiology (Diagnostic Radiology)
255 W LANCASTER AVE
PAOLI, PA 19301
Plastic Surgery
255 W LANCASTER AVE, MOB III, SUITE 332
PAOLI, PA 19301

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215677679, enumerated as an "individual" on March 31, 2022.

The provider is located at 255 W LANCASTER AVE PAOLI, PA 19301 and the phone number is (610) 647-8000.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.