MR. MARK A. HAWK NP
NPI 1588781959
Nurse Practitioner - Gerontology in San Francisco, CA
NPI Status: Active since March 23, 2007
Contact Information
1001 POTRERO AVE # 3B
SFGH SURGERY DEPARTMENT
SAN FRANCISCO, CA
ZIP 94110
Phone: (415) 206-4073
Fax: (415) 206-6293
NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Nurse Practitioner
- Gerontology
About MARK HAWK
This page provides the complete NPI Profile along with additional information for Mark Hawk, a provider established in San Francisco, California with a medical specialization in Nurse Practitioner, focusing in gerontology . The healthcare provider is registered in the NPI registry with number 1588781959 assigned on March 2007. The practitioner's primary taxonomy code is 363LG0600X with license number NPF11216 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1588781959
- Provider Name
- MR. MARK A. HAWK NP
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1001 POTRERO AVE # 3B SFGH SURGERY DEPARTMENT SAN FRANCISCO, CA 94110
- Location Phone
- (415) 206-4073
- Location Fax
- (415) 206-6293
- Mailing Address
- 1001 POTRERO AVE # 3B SFGH SURGERY DEPARTMENT SAN FRANCISCO, CA 94110
- Mailing Phone
- (415) 206-4073
- Mailing Fax
- (415) 206-6293
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-23-2007
- Last Update Date
- 09-11-2025
- Code Navigator
A nurse practitioner (NP) like Mark Hawk is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
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
Nurse Practitioner Gerontology
- Taxonomy Code
- 363LG0600X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- NPF11216
- 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 | 163WM0705X | Nursing Service Providers | Registered Nurse | RN387281 (CA) |
| 2 | 363LA2100X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner | NPF11216 (CA) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 976753 | OTHER (01) | SFGH INTERNAL USE ONLY-COMMERCIAL NUMBER |
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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 1588781959, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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 71 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1588781959, enumerated as an "individual" on March 23, 2007.
The provider is located at 1001 POTRERO AVE # 3B SFGH SURGERY DEPARTMENT SAN FRANCISCO, CA 94110 and the phone number is (415) 206-4073.
Nurse Practitioner with taxonomy code 363LG0600X and a focus in Gerontology.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
