THOMAS MICHAEL MARSELLA M.D.
NPI 1982716460
Preventive Medicine - Occupational Medicine in San Francisco, CA

NPI Status: Active since August 31, 2006

Contact Information

45 CASTRO ST
SOUTH TOWER, SUITE 160A
SAN FRANCISCO, CA
ZIP 94114
Phone: (415) 600-5252
Fax: (415) 600-4646

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  • Individual
  • Male
  • Preventive Medicine
  • Occupational Medicine

About THOMAS MARSELLA

This page provides the complete NPI Profile along with additional information for Thomas Marsella, a provider established in San Francisco, California with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1982716460 assigned on August 2006. The practitioner's primary taxonomy code is 2083X0100X with license number G060434 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1982716460
Provider Name
THOMAS MICHAEL MARSELLA M.D.
Gender
Male
Entity Type
Individual
Location Address
45 CASTRO ST SOUTH TOWER, SUITE 160A SAN FRANCISCO, CA 94114
Location Phone
(415) 600-5252
Location Fax
(415) 600-4646
Mailing Address
45 CASTRO ST SOUTH TOWER, SUITE 160A SAN FRANCISCO, CA 94114
Mailing Phone
(415) 600-5252
Mailing Fax
(415) 600-4646
Is Sole Proprietor?
No
Enumeration Date
08-31-2006
Last Update Date
07-08-2007
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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 Occupational Medicine

Taxonomy Code
2083X0100X
Type
Allopathic & Osteopathic Physicians
License No.
G060434
License State
CA
Taxonomy Description
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

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
D33784MEDICARE UPIN (02)CA 

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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 1982716460, 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.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
0
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 8 → 16 → 7 7 → 14 → 5 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 6 + 2 + 1 + 4 + 1 + 1 + 2 + 4 + 1 + 2 + 24 = 60

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.

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1982716460.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine
45 CASTRO ST, STE 402
SAN FRANCISCO, CA 94114
Surgery (Plastic and Reconstructive Surgery)
45 CASTRO ST, STE 121
SAN FRANCISCO, CA 94114
Surgery (Surgery of the Hand)
45 CASTRO ST, SUITE 121
SAN FRANCISCO, CA 94114
Surgery (Plastic and Reconstructive Surgery)
45 CASTRO ST, SUITE 121
SAN FRANCISCO, CA 94114
Internal Medicine (Critical Care Medicine)
45 CASTRO ST, 200
SAN FRANCISCO, CA 94114
Internal Medicine
45 CASTRO ST, SUITE 423
SAN FRANCISCO, CA 94114
Internal Medicine
45 CASTRO ST, SUITE 423
SAN FRANCISCO, CA 94114
Ophthalmology
45 CASTRO ST, #309
SAN FRANCISCO, CA 94114
Specialist
45 CASTRO ST, MEDICAL OFFICE BUILDING #410
SAN FRANCISCO, CA 94114
Family Medicine (Adult Medicine)
45 CASTRO ST, SUITE #432
SAN FRANCISCO, CA 94114
Podiatrist (Foot & Ankle Surgery)
45 CASTRO ST, # 337
SAN FRANCISCO, CA 94114
Physician Assistant (Medical)
45 CASTRO ST, SUITE 402
SAN FRANCISCO, CA 94114
Physician Assistant
45 CASTRO ST, 332
SAN FRANCISCO, CA 94114
Occupational Therapist
45 CASTRO ST, SOUTH TOWER LEVEL A, OUTPATIENT REHAB
SAN FRANCISCO, CA 94114
Physician Assistant
45 CASTRO ST, SUITE 421
SAN FRANCISCO, CA 94114
Internal Medicine (Infectious Disease)
45 CASTRO ST, # 125
SAN FRANCISCO, CA 94114
Physician Assistant (Medical)
45 CASTRO ST, SUITE 332
SAN FRANCISCO, CA 94114
Internal Medicine (Hematology & Oncology)
45 CASTRO ST, SUITE 309
SAN FRANCISCO, CA 94114
Physical Medicine & Rehabilitation
45 CASTRO ST, SUITE 200
SAN FRANCISCO, CA 94114
Internal Medicine
45 CASTRO ST, SUITE 325
SAN FRANCISCO, CA 94114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982716460, enumerated as an "individual" on August 31, 2006.

The provider is located at 45 CASTRO ST SOUTH TOWER, SUITE 160A SAN FRANCISCO, CA 94114 and the phone number is (415) 600-5252.

Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.