DR. STEVEN SEAN CALLAHAN PH.D.
NPI 1275677643
Psychologist in Houston, TX
NPI Status: Active since February 17, 2007
Contact Information
4101 GREENBRIAR ST
SUITE 115
HOUSTON, TX
ZIP 77098
Phone: (713) 526-5149
Fax: (713) 526-0391
- Individual
- Male
- Years of Experience 45
- Psychologist
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About STEVEN CALLAHAN
This page provides the complete NPI Profile along with additional information for Steven Callahan, a provider established in Houston, Texas with a medical specialization in Psychologist and more than 45 years of experience. The healthcare provider is registered in the NPI registry with number 1275677643 assigned on February 2007. The practitioner's primary taxonomy code is 103T00000X with license number 22630 (TX). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1275677643
- Provider Name
- DR. STEVEN SEAN CALLAHAN PH.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4101 GREENBRIAR ST SUITE 115 HOUSTON, TX 77098
- Location Phone
- (713) 526-5149
- Location Fax
- (713) 526-0391
- Mailing Address
- 4101 GREENBRIAR ST SUITE 115 HOUSTON, TX 77098
- Mailing Phone
- (713) 526-5149
- Mailing Fax
- (713) 526-0391
- Medical School Name
- OTHER
- Graduation Year
- 1981
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-17-2007
- Last Update Date
- 07-08-2007
- Code Navigator
A psychologist like Steven Callahan studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.
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
Psychologist
- Taxonomy Code
- 103T00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 22630
- License State
- TX
- Taxonomy Description
- A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Choice Bronze HSA (QualChoice) - POS
- Complete Gold - PPO
- Complete Gold + Vision + Adult Dental - PPO
- Connected Silver - PPO
- Connected Silver (QualChoice) - POS
- Connected Silver (QualChoice) + Vision + Adult Dental - POS
- Connected Silver (QualChoiceLife) - PPO
- Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
- Connected Silver + Vision + Adult Dental - PPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold (QualChoice) - POS
- Elite Gold (QualChoice) + Vision + Adult Dental - POS
- Elite Gold (QualChoiceLife) - PPO
- Elite Gold (QualChoiceLife) + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Standard Expanded Bronze (QualChoice) - POS
- Standard Expanded Bronze + Vision + Adult Dental - PPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold - PPO
- Elite Gold + Vision + Adult Dental - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Everyday Gold - PPO
- Everyday Gold + Vision + Adult Dental - PPO
- Focused Silver - PPO
- Focused Silver + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Standard Expanded Bronze + Vision + Adult Dental - PPO
- Standard Gold - PPO
- Standard Gold + Vision + Adult Dental - PPO
- Standard Silver - PPO
- Standard Silver + Vision + Adult Dental - PPO
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- MyBlue Health Bronze? 402 - HMO
- CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential - HMO
- CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Bronze Essential Plus - HMO
- CHRISTUS Catastrophic (3 Free PCP visits) - HMO
- CHRISTUS Gold - HMO
- CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential - HMO
- CHRISTUS Gold Essential ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential + Dental & Vision ($0 Rx Deductible, $5 PCP, $0 Virtual Urgent Care) - HMO
- CHRISTUS Gold Essential Plus - HMO
- CHRISTUS Gold Plus - HMO
- CHRISTUS Silver Essential - HMO
- CHRISTUS Silver Essential 70 ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Silver Essential 70 + Dental & Vision ($5 PCP, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
- CHRISTUS Silver Essential Plus - HMO
- CHRISTUS Standard Expanded Bronze - HMO
- Community Premier Bronze 003 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Community Premier Bronze 018 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Community Premier Gold 005 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Community Premier Gold 021 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Community Premier Silver 012 (No deductible for PCP, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Community Premier Silver 020 (No deductible for PCP, Specialist, Urgent Care & Generics, $0 PCP 24/7 Virtual Care Options) - HMO
- Bronze Classic 4700 - HMO
- Bronze Classic Standard - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Bronze Simple Chronic Care CKM - HMO
- Bronze Simple Diabetes - HMO
- Gold Classic - HMO
- Gold Classic Standard - HMO
- Gold Elite Saver Plus - HMO
- Silver Classic Standard - HMO
- Silver Elite Saver Plus - HMO
- Silver Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Silver Simple Chronic Care CKM - HMO
- Silver Simple Diabetes - HMO
- Silver Simple PCP Saver - HMO
- Silver Simple Women's Health with Menopause Benefits - HMO
- Bronze Classic - EPO
- Bronze Classic | with Bryan Health - EPO
- Bronze Classic 4700 - EPO
- Bronze Classic Standard - EPO
- Bronze Classic Standard | with Bryan Health - EPO
- Bronze Elite + PCP Saver Plus - EPO
- Bronze Elite + PCP Saver Plus | with Bryan Health - EPO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - EPO
- Bronze Simple Chronic Care CKM - EPO
- Bronze Simple Diabetes - EPO
- Bronze Simple Diabetes | with Bryan Health - EPO
- Gold Classic - EPO
- Gold Classic Guided Care - HMO
- Gold Classic Standard - EPO
- Gold Classic Standard | with Bryan Health - EPO
- Gold Classic Standard Guided Care - HMO
- Gold Elite - EPO
- Gold Elite | with Bryan Health - EPO
- Gold Simple - EPO
- Gold Simple Diabetes Guided Care - HMO
- Connect 1500 Gold - EPO
- Connect 6000 Silver - EPO
- Connect 9800 Bronze - EPO
- HSA Qualified 7500 Bronze - Choice Network - EPO
- HSA-E Qualified 7500 Bronze - Signature Network - EPO
- Providence Oregon Standard Bronze Plan - Choice Network - EPO
- Providence Oregon Standard Bronze Plan - Signature Network - EPO
- Providence Oregon Standard Gold Plan - Choice Network - EPO
- Providence Oregon Standard Gold Plan - Signature Network - EPO
- Providence Oregon Standard Silver Plan - Choice Network - EPO
- Providence Oregon Standard Silver Plan - Signature Network - EPO
- UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
- UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - EPO
- UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - HMO
- UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision) - HMO
- UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
- UHC Bronze Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - HMO
- UHC Bronze Essential ($0 Virtual Urgent Care) - HMO
- UHC Bronze Essential- ($0 Virtual Urgent Care) - HMO
- UHC Bronze Essential ($0 Virtual Urgent Care, No Referrals) - EPO
- UHC Bronze Essential ($0 Virtual Urgent Care, No Referrals) - HMO
- UHC Bronze Essential (No Referrals) - EPO
- UHC Bronze Standard - HMO
- UHC Bronze Standard (No Referrals) - EPO
- UHC Bronze Standard (No Referrals) - HMO
- UHC Bronze Standard+ (Dental + Vision) - HMO
- UHC Bronze Standard+ (Dental + Vision, No Referrals) - EPO
- UHC Bronze Standard+ (Dental + Vision, No Referrals) - HMO
- UHC Bronze Value ($0 Virtual Urgent Care, No Referrals) - HMO
- UHC Bronze Value+ ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - HMO
- UHC Gold Advantage ($0 Virtual Urgent Care, $1 Tier 2 Rx) - HMO
- Wellpoint Essential Bronze 4000 HSA (+ Incentives) - HMO
- Wellpoint Essential Bronze 6000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Bronze 6000 Adult Dental/Vision ($0 Virtual PCP+$0 Select Drugs) - HMO
- Wellpoint Essential Bronze 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Bronze POS 4500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Bronze POS 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Bronze POS 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Catastrophic (+ Incentives) - HMO
- Wellpoint Essential Gold 1500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold 800 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold POS 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Gold POS 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Gold POS 700 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Silver 1850 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 3500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 3500 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver POS 2500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Silver POS 4000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Steven Callahan is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Steven 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
PECOS PAC ID: 3870407513
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20101118001277, I20240411001206, I20240412003821, I20240501001362, I20240523001364, I20240529001556, I20240529003484, I20240621001995, I20241210003127, I20250204001447, I20250327002615
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.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 1275677643, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
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 67 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
HOUSTON, TX 77098
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1275677643, enumerated as an "individual" on February 17, 2007.
The provider is located at 4101 GREENBRIAR ST SUITE 115 HOUSTON, TX 77098 and the phone number is (713) 526-5149.
Psychologist with taxonomy code 103T00000X.
The provider might be accepting Accepts: Ambetter from Arizona Complete Health, Ambetter. Please consult your insurance carrier or call the provider to verify.
