John Gray, M.D.
NPI 1619998499 · Nephrology Physician · Brooklyn Center, MN
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Gray, M.D. is a Nephrology Physician provider in Brooklyn Center, MN (NPI 1619998499).
Provider details
- NPI number
- 1619998499
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32388 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
816 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 248 | $74 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 143 | $332 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 104 | $107 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 67 | $122 |
| Hemodialysis Procedure With Physician Evaluation90935 | 63 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Empagliflozinbrand: Jardiance | 134 | 32 |
| Torsemide | 117 | 43 |
| Calcitriol | 111 | 33 |
| Metoprolol Succinate | 63 | 18 |
| Lisinopril | 63 | 21 |
| Amlodipine Besylate | 56 | 21 |
| Chlorthalidone | 52 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2021-03-11
- Certified
- 2021-03-11
Frequently asked questions
- What is John Gray's NPI number?
- John Gray's National Provider Identifier (NPI) is 1619998499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Gray's specialty?
- John Gray is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is John Gray located?
- John Gray's practice location on file with NPPES is 6200 Shingle Creek Pkwy, Brooklyn Center, MN 55430-2128.
- What is John Gray's phone number?
- The practice phone number listed in the NPPES registry for John Gray is (763) 544-0696.
- Does John Gray accept Medicare?
- John Gray is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Gray's NPI active?
- Yes — John Gray's NPI (1619998499) 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.