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

Theodorus B.m. Van Den Helder, MD

Individual provider Anesthesiology Physician · NPI 1174550438

Theodorus B.m. Van Den Helder, MD practises Anesthesiology in San Diego, California. Qualified in 1990, 36 years ago. Practices with Anesthesia Service Medical Group, a 237-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
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

3626 Ruffin Rd
San Diego, CA 92123-1810 Not confirmed with CMS for 18 years — call before visiting
Phone: (858) 565-9666
Fax: (858) 565-9441
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A63559 (CA)

Record details

NPI number1174550438
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2006
Last updated in NPPESDecember 7, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Anesthesia Service Medical Group — 237 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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