James Marczak, PA-C
NPI 1720123805 · Physician Assistant · Glendale, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Marczak, PA-C is a Physician Assistant provider in Glendale, AZ (NPI 1720123805).
Provider details
- NPI number
- 1720123805
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 1910 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
115 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $105 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 25 | $16 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 | 25 | $21 |
| Advance Care Planning, First 30 Minutes99497 | 21 | $67 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 18 | $107 |
Typical Medicare-allowed amounts for these services range $16–$107 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 81 | 26 |
| Levothyroxine Sodium | 68 | 26 |
| Metoprolol Succinate | 57 | 17 |
| Lisinopril | 54 | 17 |
| Meloxicam | 53 | 17 |
| Rosuvastatin Calcium | 46 | 19 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,343 across 36 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 18275 N 59th Ave Ste 144Glendale, AZ 85308-1253Phone: (602) 564-0078Fax: (602) 564-1154
- 1151 N Gilbert RdMesa, AZ 85203-5127Phone: (480) 610-0688Fax: (480) 969-6132
Registry dates
- Enumerated
- 2007-02-20
- Last updated
- 2025-11-18
- Certified
- 2025-11-18
Frequently asked questions
- What is James Marczak's NPI number?
- James Marczak's National Provider Identifier (NPI) is 1720123805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Marczak's specialty?
- James Marczak is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Marczak located?
- James Marczak's practice location on file with NPPES is 18275 N 59th Ave Ste 138, Glendale, AZ 85308-1253.
- What is James Marczak's phone number?
- The practice phone number listed in the NPPES registry for James Marczak is (602) 843-2300.
- Does James Marczak accept Medicare?
- James Marczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Marczak's NPI active?
- Yes — James Marczak's NPI (1720123805) is active in the NPPES registry as of the last update on 2025-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.