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

Johnathan David Maskin, MD

Individual provider Anesthesiology Physician · NPI 1386668366

Johnathan David Maskin, MD is an Anesthesiology in Pasadena, California. Qualified in 1980, 46 years ago. Practices with Pacific Valley Medical Group, a 104-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
46
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

100 W California Blvd
Pasadena, CA 91105-3010
Phone: (626) 397-5000
Fax: (626) 397-2912
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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 A41837 (CA)

Record details

NPI number1386668366
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 26, 2006
Last updated in NPPESFebruary 14, 2008
Mailing address225 S Lake Ave, 535, Pasadena, CA 91101-3005

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Group practice Pacific Valley Medical Group — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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