MARC S WILLIAMS MD
NPI 1992807655
Medical Genetics - Clinical Genetics (M.D.) in Danville, PA
NPI Status: Active since September 02, 2006
Contact Information
100 N ACADEMY AVE
DANVILLE, PA
ZIP 17822
Phone: (570) 214-7941
Fax: (570) 271-5886
- Individual
- Male
- Medical Genetics
- Clinical Genetics (M.D.)
- PECOS Enrolled
About MARC WILLIAMS
This page provides the complete NPI Profile along with additional information for Marc Williams, a provider established in Danville, Pennsylvania with a medical specialization in Medical Genetics, focusing in clinical genetics (m.d.) . The healthcare provider is registered in the NPI registry with number 1992807655 assigned on September 2006. The practitioner's primary taxonomy code is 207SG0201X with license number MD444648 (PA). The provider is registered as an individual and his NPI record was last updated 6 years ago.
- NPI
- 1992807655
- Provider Name
- MARC S WILLIAMS MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 100 N ACADEMY AVE DANVILLE, PA 17822
- Location Phone
- (570) 214-7941
- Location Fax
- (570) 271-5886
- Mailing Address
- 100 N ACADEMY AVE DANVILLE, PA 17822
- Mailing Phone
- (570) 271-6144
- Mailing Fax
- (570) 271-5886
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-02-2006
- Last Update Date
- 08-12-2020
- 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
Medical Genetics Clinical Genetics (M.D.)
- Taxonomy Code
- 207SG0201X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- MD444648
- License State
- PA
- Taxonomy Description
- A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.
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 | 207SG0201X | Allopathic & Osteopathic Physicians | Medical Genetics | 57601011205 (UT) |
| 2 | 208000000X | Allopathic & Osteopathic Physicians | Pediatrics | 57601018905 (UT) |
| 3 | 208000000X | Allopathic & Osteopathic Physicians | Pediatrics | MD444648 (PA) |
Medicare Participation & PECOS Enrollment Status
Marc Williams 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, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
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
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): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
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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 1992807655, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 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.
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
DANVILLE, PA 17822
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1992807655, enumerated as an "individual" on September 02, 2006.
The provider is located at 100 N ACADEMY AVE DANVILLE, PA 17822 and the phone number is (570) 214-7941.
Medical Genetics with taxonomy code 207SG0201X and a focus in Clinical Genetics (M.D.).
