DR. GREGORY REMBERT THIGPEN PSYD
NPI 1841343811
Psychologist - Clinical Child & Adolescent in Santa Rosa, CA

NPI Status: Active since January 20, 2007

Contact Information

920 MENDOCINO AVE
SANTA ROSA, CA
ZIP 95401
Phone: (707) 494-6462
Fax: (707) 539-3588

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  • Individual
  • Male
  • Psychologist
  • Clinical Child & Adolescent
  • PECOS Enrolled
  • Opted-Out Medicare

About GREGORY THIGPEN

This page provides the complete NPI Profile along with additional information for Gregory Thigpen, a provider established in Santa Rosa, California with a medical specialization in Psychologist, focusing in clinical child & adolescent . The healthcare provider is registered in the NPI registry with number 1841343811 assigned on January 2007. The practitioner's primary taxonomy code is 103TC2200X with license number PSY19198 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1841343811
Provider Name
DR. GREGORY REMBERT THIGPEN PSYD
Gender
Male
Entity Type
Individual
Location Address
920 MENDOCINO AVE SANTA ROSA, CA 95401
Location Phone
(707) 494-6462
Location Fax
(707) 539-3588
Mailing Address
PO BOX 2996 SANTA ROSA, CA 95405
Mailing Phone
(707) 494-6462
Mailing Fax
(707) 539-3588
Is Sole Proprietor?
Yes
Enumeration Date
01-20-2007
Last Update Date
09-11-2025
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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. Gregory Thigpen opted out of Medicare effective on 01-01-2020 until 01-01-2026. 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 but is permitted to 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

Psychologist Clinical Child & Adolescent

Taxonomy Code
103TC2200X
Type
Behavioral Health & Social Service Providers
License No.
PSY19198
License State
CA
Taxonomy Description
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.

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)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

PSY19198 (CA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
0PL191980OTHER (01)CABLUE SHIELD
PSY191980MEDICAID (05)CA 
355188OTHER (01)CAMANAGED HEALTH NETWORK

Medicare Participation & PECOS Enrollment Status

Gregory Thigpen 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: Part B Clinical Laboratory and Imaging and 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 01-01-2020

  • Opt-Out End Date: 01-01-2026

  • Eligible to Order and Refer? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • 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 DR. GREGORY REMBERT THIGPEN PSYD

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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 1841343811, 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.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
4
Doubled → 8
Pos 4
1
Unchanged
Pos 5
3
Doubled → 6
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
1
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 4 → 8 3 → 6 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 8 + 1 + 6 + 4 + 6 + 8 + 2 + 24 = 69

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.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1841343811.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Marriage & Family Therapist
920 MENDOCINO AVE, SUITE 5
SANTA ROSA, CA 95401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1841343811, enumerated as an "individual" on January 20, 2007.

The provider is located at 920 MENDOCINO AVE SANTA ROSA, CA 95401 and the phone number is (707) 494-6462.

Psychologist with taxonomy code 103TC2200X and a focus in Clinical Child & Adolescent.

The provider might be accepting Accepts: Blue Cross Blue Shield, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.