Mary Fregene, PA
NPI 1639361884 · Physician Assistant · Holland, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Fregene, PA is a Physician Assistant provider in Holland, MI (NPI 1639361884).
Provider details
- NPI number
- 1639361884
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 5601005017 (MI)
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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
127 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 | 46 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $74 |
| 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 | 25 | $14 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 15 | $68 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 12 | $143 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 126 | 38 |
| Omeprazole | 95 | 36 |
| Dicyclomine Hcl | 93 | 24 |
| Linaclotidebrand: Linzess | 58 | 15 |
| Loperamide Hclbrand: Loperamide | 56 | 17 |
| Balsalazide Disodium | 42 | 15 |
| Rifaximinbrand: Xifaxan | 38 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$381 across 28 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
Registry dates
- Enumerated
- 2007-08-13
- Last updated
- 2021-03-11
- Certified
- 2021-03-11
Frequently asked questions
- What is Mary Fregene's NPI number?
- Mary Fregene's National Provider Identifier (NPI) is 1639361884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Fregene's specialty?
- Mary Fregene is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Fregene located?
- Mary Fregene's practice location on file with NPPES is 588 E Lakewood Blvd, Holland, MI 49424-2023.
- What is Mary Fregene's phone number?
- The practice phone number listed in the NPPES registry for Mary Fregene is (616) 494-5810.
- Does Mary Fregene accept Medicare?
- Mary Fregene is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Fregene's NPI active?
- Yes — Mary Fregene's NPI (1639361884) is active in the NPPES registry as of the last update on 2021-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.