DR MARY TILAK PC
NPI 1003096900
Internal Medicine - Obesity Medicine in Munster, IN
NPI Status: Active since November 07, 2007
Contact Information
9410 CALUMET AVE STE 101
MUNSTER, IN
ZIP 46321
Phone: (219) 922-8051
Fax: (219) 922-8608
- Organization
- Internal Medicine
- Obesity Medicine
- Accepts Insurance
- CLIA Number: 15D2021147
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 03-06-2027
About DR MARY TILAK PC
This page provides the complete NPI Profile along with additional information for Dr Mary Tilak Pc, an internist established in Munster, Indiana operating as a Internal Medicine, focusing in obesity medicine . The healthcare provider is registered in the NPI registry with number 1003096900 assigned on November 2007. The practitioner's primary taxonomy code is 207RB0002X. The provider is registered as an organization and their NPI record was last updated April 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Mary N. Tilak M.d. (President)
- NPI
- 1003096900
- Provider Name
- DR MARY TILAK PC
- Entity Type
- Organization
- Location Address
- 9410 CALUMET AVE STE 101 MUNSTER, IN 46321
- Location Phone
- (219) 922-8051
- Location Fax
- (219) 922-8608
- Mailing Address
- PO BOX 736895 CHICAGO, IL 60673
- Mailing Phone
- (219) 922-8051
- Mailing Fax
- (219) 922-8608
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 11-07-2007
- Last Update Date
- 04-24-2026
- Code Navigator
An internist like Dr Mary Tilak Pc is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
Secondary Locations
- 1275 E North St Ste 102
Crown Point, IN 46307
(219) 922-8051 - 6625 W Lincoln Hwy
Crown Point, IN 46307
(219) 922-8051
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
Internal Medicine Obesity Medicine
- Taxonomy Code
- 207RB0002X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An internal medicine physician who specializes in the treatment of obesity demonstrates competency in and a thorough understanding of the treatment of obesity and the genetic, biologic, environmental, social, and behavioral factors that contribute to obesity. The obesity medicine physician employs therapeutic interventions including diet, physical activity, behavioral change, and pharmacotherapy. The obesity medicine physician utilizes a comprehensive approach, and may include additional resources such as dietitians, exercise physiologists, mental health professionals and bariatric surgeons as indicated to achieve optimal results. Additionally, the obesity medicine physician maintains competency in providing pre- peri- and post-surgical care of bariatric surgery patients, promotes the prevention of obesity, and advocates for those who suffer from obesity.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Clear Gold - HMO
- Clear Gold + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Clear Silver - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Everyday Gold - HMO
- Everyday Gold + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Focused Silver - HMO
- Focused Silver + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
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.
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 |
|---|---|---|---|
| 000000541656 | OTHER (01) | IN | ANTHEM |
| 90001352 | OTHER (01) | IL | BC/BS |
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 15D2021147
- Facility Type
- Physician Office
- Certificate Effective Date
- March 07, 2025
- Certificate Expiration Date
- March 06, 2027
- Laboratory Director
- MARY TILAK
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Dr Mary Tilak Pc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
Reviews for DR MARY TILAK PC
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1003096900, 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 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 50 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
MUNSTER, IN 46321
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1003096900, enumerated as an "organization" on November 07, 2007.
The provider is located at 9410 CALUMET AVE STE 101 MUNSTER, IN 46321 and the phone number is (219) 922-8051.
Internal Medicine with taxonomy code 207RB0002X and a focus in Obesity Medicine.
The provider might be accepting Accepts: Ambetter from Buckeye Health Plan, Ambetter from. Please consult your insurance carrier or call the provider to verify.
