Crystal Gardner-Martin, MD
NPI 1447244280 · Nephrology Physician · Livonia, MI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Gardner-Martin, MD is a Nephrology Physician provider in Livonia, MI (NPI 1447244280).
Provider details
- NPI number
- 1447244280
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301073171 (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
20 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
1,432 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) |
|---|---|---|
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 185 | $39 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 142 | $79 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 122 | $352 |
| 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 | 114 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 101 | $86 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 277 | 79 |
| Dapagliflozin Propanediolbrand: Farxiga | 195 | 60 |
| Amlodipine Bes/Olmesartan Medbrand: Amlodipine-Olmesartan | 147 | 45 |
| Semaglutidebrand: Ozempic | 144 | 26 |
| Losartan Potassium | 133 | 42 |
| Amlodipine Besylate | 131 | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,130 across 75 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)
- 5250 Auto Club Dr Ste 100Dearborn, MI 48126-2619Phone: (248) 478-1500Fax: (248) 478-2798
- 7633 E Jefferson Ave Ste 180Detroit, MI 48214-3731Phone: (248) 478-1500Fax: (248) 478-2798
Registry dates
- Enumerated
- 2005-09-08
- Last updated
- 2022-09-09
- Certified
- 2022-09-09
Frequently asked questions
- What is Crystal Gardner-Martin's NPI number?
- Crystal Gardner-Martin's National Provider Identifier (NPI) is 1447244280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Gardner-Martin's specialty?
- Crystal Gardner-Martin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Crystal Gardner-Martin located?
- Crystal Gardner-Martin's practice location on file with NPPES is 18302 Middlebelt Rd, Livonia, MI 48152-5007.
- What is Crystal Gardner-Martin's phone number?
- The practice phone number listed in the NPPES registry for Crystal Gardner-Martin is (248) 478-1500.
- Does Crystal Gardner-Martin accept Medicare?
- Crystal Gardner-Martin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Gardner-Martin's NPI active?
- Yes — Crystal Gardner-Martin's NPI (1447244280) is active in the NPPES registry as of the last update on 2022-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.