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

Dr. William Weiming Chang, DO

Individual provider Specialist · NPI 1417902149

Dr. William Weiming Chang, DO is a Pulmonary Disease in San Juan Capistrano, California. Graduated from Michigan State University College of Osteopathic Medicine in 2000, 26 years ago. Practices with Paloma Medical Group Inc, an 18-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
26
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

30230 Rancho Viejo Rd Ste 200
San Juan Capistrano, CA 92675-1557
Phone: (714) 571-5000
Fax: (714) 571-5055
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 20A7942 (CA)
Specialist Taxonomy 174400000X · Licence 20A7942 (CA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 20A7942 (CA)

Record details

NPI number1417902149
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 23, 2006
Last updated in NPPESApril 17, 2013

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2000 (26 years in practice)
Group practice Paloma Medical Group Inc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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