MRS. HOLLY PETRO MSW, LSW
NPI 1659251981
Social Worker - Clinical in Allentown, PA
NPI Status: Active since September 05, 2025
Contact Information
1247 S CEDAR CREST BLVD STE 107
ALLENTOWN, PA
ZIP 18103
Phone: (484) 202-0751
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Social Worker
- Clinical
About HOLLY PETRO
This page provides the complete NPI Profile along with additional information for Holly Petro, a provider established in Allentown, Pennsylvania with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1659251981 assigned on September 2025. The practitioner's primary taxonomy code is 1041C0700X with license number CW027425 (PA). The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1659251981
- Provider Name
- MRS. HOLLY PETRO MSW, LSW
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1247 S CEDAR CREST BLVD STE 107 ALLENTOWN, PA 18103
- Location Phone
- (484) 202-0751
- Mailing Address
- 858 HILL ST PHILLIPSBURG, NJ 08865
- Mailing Phone
- (973) 796-7297
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-05-2025
- Last Update Date
- 05-12-2026
- Code Navigator
A clinical social worker like Holly Petro is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.
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
Social Worker Clinical
- Taxonomy Code
- 1041C0700X
- Type
- Behavioral Health & Social Service Providers
- License No.
- CW027425
- License State
- PA
- Taxonomy Description
- A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
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) |
|---|---|---|---|---|
| 1 | 104100000X | Behavioral Health & Social Service Providers | Social Worker | 44SL06561500 (NJ) |
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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 1659251981, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 69 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 10 providers are registered at the same or a nearby location.
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1659251981, enumerated as an "individual" on September 05, 2025.
The provider is located at 1247 S CEDAR CREST BLVD STE 107 ALLENTOWN, PA 18103 and the phone number is (484) 202-0751.
Social Worker with taxonomy code 1041C0700X and a focus in Clinical.
