JOHN S MARVIN LCSW
NPI 1336755784
Social Worker - Clinical in Portland, OR
NPI Status: Active since September 21, 2020
Contact Information
2450 SE BELMONT ST
PORTLAND, OR
ZIP 97214
Phone: (971) 910-8918
- Individual
- Social Worker
- Clinical
About JOHN MARVIN
This page provides the complete NPI Profile along with additional information for John Marvin, a provider established in Portland, Oregon operating as a Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1336755784 assigned on September 2020. The practitioner's primary taxonomy code is 1041C0700X. The provider is registered as an individual and their NPI record was last updated March 2025.
- NPI
- 1336755784
- Provider Name
- JOHN S MARVIN LCSW
- Gender
- Entity Type
- Individual
- Location Address
- 2450 SE BELMONT ST PORTLAND, OR 97214
- Location Phone
- (971) 910-8918
- Mailing Address
- 2329 NE RODNEY AVE PORTLAND, OR 97212
- Mailing Phone
- (503) 597-8237
- Mailing Fax
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-21-2020
- Last Update Date
- 03-31-2025
- Code Navigator
A clinical social worker like John Marvin 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
Secondary Locations
- 2329 NE Rodney Ave
Portland, OR 97212
(503) 597-8237
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
- 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.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 3 | 3 | 6 | 7 | 5 | 5 | 7 | 8 | 4 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 3 | 6 | 6 | 14 | 5 | 10 | 7 | 16 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 3 + 6 + 6 + 1 + 4 + 5 + 1 + 0 + 7 + 1 + 6 + 24 = 66 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 66 = 4 | 4 | ||||||||
The NPI number 1336755784 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 6 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1730427717 | SELECT HEALTHCARE LLC Organization | Chiropractor | 2450 SE BELMONT ST PORTLAND, OR 97214 (503) 367-6685 |
| 1295102382 | RICHARD BLATT LMT Individual | Massage Therapist | 2450 SE BELMONT ST PORTLAND, OR 97214 (503) 407-4827 |
| 1902273998 | PORTLAND BODYWORK Organization | Massage Therapist | 2450 SE BELMONT ST PORTLAND, OR 97214 (503) 407-4827 |
| 1568976439 | WILLIAM ROBERT TERRALL LMT Individual | Massage Therapist | 2450 SE BELMONT ST PORTLAND, OR 97214 (541) 292-8957 |
| 1316254022 | SHANAKO DEVOLL CADC I, QMHA Individual | Counselor (Mental Health) | 2450 SE BELMONT ST PORTLAND, OR 97214 (503) 887-6255 |
| 1578146106 | HEALING TIDES COUNSELING, LLC Organization | Counselor (Mental Health) | 2450 SE BELMONT ST PORTLAND, OR 97214 (503) 887-2555 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1336755784, enumerated in the NPI registry as an "individual" on September 21, 2020
The provider is located at 2450 Se Belmont St Portland, Or 97214 and the phone number is (971) 910-8918
The provider's speciality is Social Worker with taxonomy code 1041C0700X with a focus in Clinical
This NPI record was last updated on September 21, 2020. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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