MARK ASHTON RITCHIE M.D.
NPI 1962683060
Psychiatry & Neurology - Psychiatry in Morgan Hill, CA
NPI Status: Active since November 16, 2007
Contact Information
1156 TERESA LANE
MORGAN HILL, CA
ZIP 95037
Phone: (408) 402-0450
- Individual
- Male
- Psychiatry & Neurology
- Psychiatry
- Opted-Out Medicare
About MARK RITCHIE
This page provides the complete NPI Profile along with additional information for Mark Ritchie, a provider established in Morgan Hill, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1962683060 assigned on November 2007. The practitioner's primary taxonomy code is 2084P0800X with license number A48077 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.
- NPI
- 1962683060
- Provider Name
- MARK ASHTON RITCHIE M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1156 TERESA LANE MORGAN HILL, CA 95037
- Location Phone
- (408) 402-0450
- Mailing Address
- 305 VINEYARD TOWN CTR # 384 MORGAN HILL, CA 95037
- Mailing Phone
- (408) 402-0450
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 11-16-2007
- Last Update Date
- 06-05-2023
- Code Navigator
A psychiatrist like Mark Ritchie are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.
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. Mark Ritchie opted out of Medicare effective on 02-13-2025 until 02-13-2027. 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 and cannot order and refer services to other healthcare providers.
Location Map
Secondary Locations
- 1234 Empire St
Fairfield, CA 94533
(707) 439-7830
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
Psychiatry & Neurology Psychiatry
- Taxonomy Code
- 2084P0800X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A48077
- License State
- CA
- Taxonomy Description
- A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Medicare Participation & PECOS Enrollment Status
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.
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 02-13-2025
Opt-Out End Date: 02-13-2027
Eligible to Order and Refer? No
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 30-39 minutes
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 109 times for 28 patientsReviews for MARK ASHTON RITCHIE M.D.
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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 1962683060, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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 60 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1962683060, enumerated as an "individual" on November 16, 2007.
The provider is located at 1156 TERESA LANE MORGAN HILL, CA 95037 and the phone number is (408) 402-0450.
Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.
