Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Mary N Tilak, MD

Individual provider Internal Medicine Physician · NPI 1518054352

Dr. Mary N Tilak, MD is an Internal Medicine in Munster, Indiana. Qualified in 1996, 30 years ago. Practices with Dr Mary Tilak PC, a 9-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Indiana.

Years since qualifying
30
Licensed in
IN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9410 Calumet Ave Ste 101
Munster, IN 46321-2812
Phone: (219) 922-8051
Fax: (219) 922-8608
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1275 E North St Ste 102, Crown Point, IN 46307-3541 — (219) 922-8051
  • 6625 W Lincoln Hwy, Crown Point, IN 46307-9678 — (219) 922-8051

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01054662A (IN)

Record details

NPI number1518054352
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESApril 24, 2026
Certification dateApril 24, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Dr Mary Tilak Pc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Munster