Mary Nixon, MD
NPI 1023403664 · Family Medicine Physician · Canton, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Nixon, MD is a Family Medicine Physician provider in Canton, MI (NPI 1023403664).
Provider details
- NPI number
- 1023403664
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 430150111 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
343 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 | 170 | $96 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 69 | $73 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $74 |
| Hemoglobin A1c Level83036 | 20 | $10 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $169 |
| Administration of Influenza Virus VaccineG0008 | 12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 293 | 98 |
| Lisinopril | 146 | 47 |
| Amlodipine Besylate | 140 | 59 |
| Losartan Potassium | 108 | 34 |
| Levothyroxine Sodium | 108 | 40 |
| Omeprazole | 77 | 25 |
| Hydrochlorothiazide | 67 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (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
- 2015-03-31
- Last updated
- 2022-08-24
- Certified
- 2022-03-31
Frequently asked questions
- What is Mary Nixon's NPI number?
- Mary Nixon's National Provider Identifier (NPI) is 1023403664, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nixon's specialty?
- Mary Nixon is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Nixon located?
- Mary Nixon's practice location on file with NPPES is 1600 S Canton Center Rd, Canton, MI 48188-1992.
- What is Mary Nixon's phone number?
- The practice phone number listed in the NPPES registry for Mary Nixon is (734) 398-7880.
- Does Mary Nixon accept Medicare?
- Mary Nixon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Nixon's NPI active?
- Yes — Mary Nixon's NPI (1023403664) is active in the NPPES registry as of the last update on 2022-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.