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

Individual provider Psychiatry Physician · NPI 1659358620

Dr. Carlos S Castillo, MD is a Psychiatry in Green Bay, Wisconsin. Qualified in 1979, 47 years ago. Practices with Northwest Iowa Mental Health Center, a 17-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
47
Licensed in
WI
In the registry since
2005
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

301 E Saint Joseph St
Green Bay, WI 54301-2241
Phone: (920) 433-3630
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 49029 (WI)

Record details

NPI number1659358620
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 29, 2005
Last updated in NPPESOctober 17, 2011

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Northwest Iowa Mental Health Center — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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