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

Mark Steven Spitzer

Individual provider Otolaryngology Physician · NPI 1407848435

Mark Steven Spitzer is an Otolaryngology in Merced, California. Qualified in 1981, 45 years ago. Practices with Timothy S Johnston MD PC, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
45
Licensed in
CA
In the registry since
2005

Practice location Address checks out

410 E Yosemite Ave Ste B
Merced, CA 95340-8220
Phone: (209) 934-8077
Fax: (209) 233-9400
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 20A5347 (CA)

Record details

NPI number1407848435
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 16, 2005
Last updated in NPPESDecember 16, 2025
Certification dateDecember 16, 2025
Mailing address410 E Yosemite Ave Ste B, Merced, CA 95340-8220

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Timothy S Johnston Md Pc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Merced