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

Stefan A Willging, MD

Individual provider Internal Medicine Physician · NPI 1679523518

Stefan A Willging, MD is an Internal Medicine in San Diego, California. Qualified in 1999, 27 years ago. Practices with Hillcrest Internal Medicine a Medical Corporation, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
27
Licensed in
CA
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

4060 4th Ave Ste 505
San Diego, CA 92103
Phone: (619) 298-1311
Fax: (619) 298-0843
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A81537 (CA)

Record details

NPI number1679523518
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESFebruary 25, 2015

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Hillcrest Internal Medicine A Medical Corporation — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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