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MARK STEVEN SPITZER
NPI 1407848435
Otolaryngology in Merced, CA

Active since August 16, 2005PECOS EnrolledAccepts Medicare Assignment
96.5/100
CMS Quality Rating
410 E YOSEMITE AVE STE B, MERCED, CA 95340(209) 934-8077(209) 233-9400 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 16, 2025, Sep 17, 2025, Aug 21, 2023 (3 updates tracked since 2023).

About Mark Steven Spitzer NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK STEVEN SPITZER (NPI 1407848435) is an individual otolaryngology provider in Merced, California, licensed in California (20A5347) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1407848435
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameMARK STEVEN SPITZER
Location Address410 E YOSEMITE AVE STE BMerced, CA 95340-8220
Mailing Address410 E Yosemite Ave Ste BMerced, CA 95340-8220 · (209) 934-8077 · Fax (209) 233-9400
Phone(209) 934-8077
Fax(209) 233-9400
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateAugust 16, 2005
Last NPPES UpdateDecember 16, 20253 updates tracked since enumeration
NPPES CertifiedDecember 16, 2025
✔ NPI 1407848435 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in CA · 20A5347
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
410 E YOSEMITE AVE STE B, Merced, CA 95340
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mark Steven Spitzer is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527950260
PECOS Enrollment IDI20040326000960
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mark Spitzer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Timothy S. Johnston, M.D. PC
Same address
Otolaryngology
410 E YOSEMITE AVE STE B
Merced, CA 95340
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Timothy S Johnston MD PC
  • 17 clinicians in this Medicare group
NPI 1972483493 (209) 934-8077

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
653 services449 patients
Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
228 services172 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
88 services80 patients
Exam of ear using a microscope 92504
An exam of the ear using a microscope allows a detailed view of the ear structures. This non-invasive procedure helps identify issues such as infections, blockages, or ear damage. It's a safe, quick, and painless way to evaluate ear health.
67 services49 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
47 services45 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
45 services37 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95340 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.34
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 13

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
3 suppliers23 claims23 services$37.31 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
3 suppliers13 claims13 services$99.82 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers13 claims38 services$37.46 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
6 suppliers24 claims139 services$20.45 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
4 suppliers33 claims168 services$14.46 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
8 suppliers56 claims56 services$56.47 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. SHERRI ANN PRISAZNIK MA
Audiologist
410 E YOSEMITE AVE STE B
MERCED, CA 95340
Merced County (209) 722-9272
NICOLETTE PINOCCHIO FNP-C
Nurse Practitioner
410 E YOSEMITE AVE STE B
MERCED, CA 95340
Merced County (209) 934-8077
TIMOTHY S. JOHNSTON, M.D. PC
Otolaryngology
410 E YOSEMITE AVE STE B
MERCED, CA 95340
Merced County (209) 934-8077

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Spitzer's NPI number?

The NPI number for Mark Spitzer is 1407848435. It was assigned to this individual provider in the NPPES registry on August 16, 2005.

Where is Mark Spitzer located?

Mark Spitzer practices at 410 E Yosemite Ave Ste B, Merced, CA 95340. The listed phone number is (209) 934-8077.

What is Mark Spitzer's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Mark Spitzer enrolled in Medicare?

Yes. Mark Spitzer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Mark Spitzer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Spitzer reassigns Medicare benefits to Timothy S. Johnston, M.D. PC (Merced, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Spitzer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Spitzer was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.