John Lake, MD
NPI 1740360619 · Gastroenterology Physician · Minneapolis, MN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Lake, MD is a Gastroenterology Physician provider in Minneapolis, MN (NPI 1740360619).
Provider details
- NPI number
- 1740360619
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 40739 (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
229 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 127 | $92 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 102 | $136 |
Typical Medicare-allowed amounts for these services range $92–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ursodiol | 337 | 89 |
| Tacrolimus | 321 | 79 |
| Prednisone | 195 | 58 |
| Mycophenolate Mofetil | 193 | 32 |
| Cyclosporine, Modifiedbrand: Cyclosporine Modified | 94 | 14 |
| Tenofovir Disoproxil Fumarate | 86 | 16 |
| Rifaximinbrand: Xifaxan | 61 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2012-10-26
Frequently asked questions
- What is John Lake's NPI number?
- John Lake's National Provider Identifier (NPI) is 1740360619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Lake's specialty?
- John Lake is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Lake located?
- John Lake's practice location on file with NPPES is University of Minnesota Physicians, Minneapolis, MN 55454-1478.
- What is John Lake's phone number?
- The practice phone number listed in the NPPES registry for John Lake is (612) 626-6100.
- Does John Lake accept Medicare?
- John Lake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Lake's NPI active?
- Yes — John Lake's NPI (1740360619) is active in the NPPES registry as of the last update on 2012-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.