RICHARD LYNN GRANSTAFF II LPCC, CATC-IV
NPI 1821523705
Counselor - Professional in San Diego, CA
- Individual
- Male
- Counselor
- Professional
- PECOS Enrolled
About RICHARD GRANSTAFF
This page provides the complete NPI Profile along with additional information for Richard Granstaff, a provider established in San Diego, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1821523705 assigned on April 2017. The practitioner's primary taxonomy code is 101YP2500X with license number 12735 (CA). The provider is registered as an individual and his NPI record was last updated June 2026.
- NPI
- 1821523705
- Provider Name
- RICHARD LYNN GRANSTAFF II LPCC, CATC-IV
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1286 UNIVERSITY AVE # 202 SAN DIEGO, CA 92103
- Location Phone
- (619) 995-6876
- Mailing Address
- 1286 UNIVERSITY AVE # 202 SAN DIEGO, CA 92103
- Mailing Phone
- (619) 995-6876
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-27-2017
- Last Update Date
- 06-22-2026
- Code Navigator
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
Counselor Professional
- Taxonomy Code
- 101YP2500X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 12735
- License State
- CA
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 | 101YA0400X | Behavioral Health & Social Service Providers | Counselor | 122582IV (CA) |
Medicare Participation & PECOS Enrollment Status
Richard Granstaff 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
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
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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 1821523705, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).
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 55 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821523705, enumerated as an "individual" on April 27, 2017.
The provider is located at 1286 UNIVERSITY AVE # 202 SAN DIEGO, CA 92103 and the phone number is (619) 995-6876.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
