CAROLYN A. MCCLAIN M.D.
NPI 1649472929
Preventive Medicine - Public Health & General Preventive Medicine in Portola Valley, CA
NPI Status: Active since May 31, 2007
Contact Information
MAISON MEDICAL
150 PORTOLA RD
PORTOLA VALLEY, CA
ZIP 94028
Phone: (650) 530-0015
- Individual
- Female
- Preventive Medicine
- Public Health & General Preventive Medic...
About CAROLYN MCCLAIN
This page provides the complete NPI Profile along with additional information for Carolyn Mcclain, a provider established in Portola Valley, California with a medical specialization in Preventive Medicine, focusing in public health & general preventive medicine . The healthcare provider is registered in the NPI registry with number 1649472929 assigned on May 2007. The practitioner's primary taxonomy code is 2083P0901X with license number C180898 (CA). The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1649472929
- Provider Name
- CAROLYN A. MCCLAIN M.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- MAISON MEDICAL 150 PORTOLA RD PORTOLA VALLEY, CA 94028
- Location Phone
- (650) 530-0015
- Mailing Address
- 150 PORTOLA RD STE A PORTOLA VALLEY, CA 94028
- Mailing Phone
- (650) 530-0015
- Mailing Fax
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-31-2007
- Last Update Date
- 02-16-2026
- 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
Preventive Medicine Public Health & General Preventive Medicine
- Taxonomy Code
- 2083P0901X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C180898
- License State
- CA
- Taxonomy Description
- Public health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with knowledge of primary, secondary, and tertiary prevention-oriented clinical practice in a wide variety of settings.
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.
Critical care, first 30-74 minutes
Emergency department visit for life threatening or functioning severity
Emergency department visit for problem of high severity
Emergency department visit for problem of moderate severity
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
This service was performed 20 times for 19 patientsAn emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
This service was performed 118 times for 117 patientsAn emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
This service was performed 34 times for 34 patientsAn emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
This service was performed 22 times for 22 patientsA routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
This service was performed 79 times for 78 patientsReviews for CAROLYN A. MCCLAIN 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 1649472929, we treat the final digit (9) 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 9).
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 81 is 90. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1649472929, enumerated as an "individual" on May 31, 2007.
The provider is located at MAISON MEDICAL 150 PORTOLA RD PORTOLA VALLEY, CA 94028 and the phone number is (650) 530-0015.
Preventive Medicine with taxonomy code 2083P0901X and a focus in Public Health & General Preventive Medicine.
