IndividualActiveAccepts Medicare

Martin Waltsak, PA-C

NPI 1669409652 · Physician Assistant · Garden Grove, CA

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Provider details

NPI number: 1669409652
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Male
Sole proprietor: No
License: PA14773 (CA)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense PA14773 (CA)
Physician Assistants & Advanced Practice Nursing Providers
Family Medicine Physician207Q00000XLicense PA14773 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(70/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
19 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
178 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	79	$81
Telephone Medical Discussion With Physician, 5-10 Minutes99441	32	$53
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	27	$118
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211	24	$15
Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426	16	$34

Typical Medicare-allowed amounts for these services range $15–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Azithromycin	81	76
Prednisone	71	65
Amlodipine Besylate	63	30
Tramadol Hcl	58	43
Losartan Potassium	57	31
Celecoxib	55	33
Atorvastatin Calcium	52	26

Practice location

12942 Harbor Blvd

Garden Grove, CA 92840

Phone: (714) 705-2120

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Mailing address