LAUREN CALLAHAN PSY.D.
NPI 1427756055
Psychologist - Clinical Child & Adolescent in San Francisco, CA
NPI Status: Active since February 22, 2023
Contact Information
870 MARKET ST STE 953
SAN FRANCISCO, CA
ZIP 94102
Phone: (650) 762-8352
- Individual
- Female
- Psychologist
- Clinical Child & Adolescent
- PECOS Enrolled
- Opted-Out Medicare
About LAUREN CALLAHAN
This page provides the complete NPI Profile along with additional information for Lauren Callahan, a provider established in San Francisco, California with a medical specialization in Psychologist, focusing in clinical child & adolescent . The healthcare provider is registered in the NPI registry with number 1427756055 assigned on February 2023. The practitioner's primary taxonomy code is 103TC2200X. The provider is registered as an individual and her NPI record was last updated 3 years ago.
- NPI
- 1427756055
- Provider Name
- LAUREN CALLAHAN PSY.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 870 MARKET ST STE 953 SAN FRANCISCO, CA 94102
- Location Phone
- (650) 762-8352
- Mailing Address
- 870 MARKET ST STE 953 SAN FRANCISCO, CA 94102
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-22-2023
- Last Update Date
- 02-22-2023
- Code Navigator
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. Lauren Callahan opted out of Medicare effective on 01-04-2024 until 01-04-2026. 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.
Location Map
Secondary Locations
- 1200 Sixth Ave Ste 202
Belmont, CA 94002
(650) 762-8352
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
- 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.
Medicare Participation & PECOS Enrollment Status
Lauren Callahan 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: 01-04-2024
Opt-Out End Date: 01-04-2026
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
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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 1427756055, 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.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1427756055, enumerated as an "individual" on February 22, 2023.
The provider is located at 870 MARKET ST STE 953 SAN FRANCISCO, CA 94102 and the phone number is (650) 762-8352.
Psychologist with taxonomy code 103TC2200X and a focus in Clinical Child & Adolescent.
