Mary Mckenzie, DO
NPI 1447458435 · Family Medicine Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Mckenzie, DO is a Family Medicine Physician provider in Chattanooga, TN (NPI 1447458435).
Provider details
- NPI number
- 1447458435
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
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
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,559 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 | 461 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 347 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 166 | $120 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 161 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 151 | $83 |
| Administration of Influenza Virus VaccineG0008 | 61 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 194 | 55 |
| Amlodipine Besylate | 180 | 53 |
| Atorvastatin Calcium | 176 | 57 |
| Rosuvastatin Calcium | 161 | 46 |
| Losartan Potassium | 140 | 47 |
| Lisinopril | 139 | 42 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$73 across 4 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
- 2007-07-11
- Last updated
- 2015-07-07
Frequently asked questions
- What is Mary Mckenzie's NPI number?
- Mary Mckenzie's National Provider Identifier (NPI) is 1447458435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Mckenzie's specialty?
- Mary Mckenzie is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Mckenzie located?
- Mary Mckenzie's practice location on file with NPPES is 320 East Main Street, Chattanooga, TN 37408.
- What is Mary Mckenzie's phone number?
- The practice phone number listed in the NPPES registry for Mary Mckenzie is (423) 643-2246.
- Does Mary Mckenzie accept Medicare?
- Mary Mckenzie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Mckenzie's NPI active?
- Yes — Mary Mckenzie's NPI (1447458435) is active in the NPPES registry as of the last update on 2015-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.