Quick answers
- Does Steven J. Lake accept Medicare assignment?
- Yes. Medicare's clinician data says Steven J. Lake accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Steven J. Lake see?
- In 2024, CMS data shows 233 Original Medicare patients and 1,201 services for Steven J. Lake. This counts Original Medicare only and measures volume, not quality.
- What is Steven J. Lake's NPI number?
- 1669494001. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Steven J. Lake, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 233 |
|---|---|
| Services billed to Medicare | 1,201 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)544 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)109 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)85 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)59 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)53 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure74%
- Arthritis53%
- Ischemic heart disease29%
- Diabetes27%
- Atrial fibrillation23%
Hospitals where Steven J. Lake works
Medicare's Facility Affiliation Data lists Steven J. Lake at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050485
Practice locations
Addresses where Steven J. Lake is enrolled with Medicare (CMS data updated October 2, 2026).
- 2801 Atlantic AveLong Beach, CA 90806 (562) 728‑5034
- 911 E San Antonio DrLong Beach, CA 90807
Group practices
Medicare enrollment lists Steven J. Lake as a member of this group (CMS data updated October 2, 2026).
- Prohealth Partners, a Medical Group239 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Long Beach
Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.
Other clinicians in Prohealth Partners, a Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1977 (49 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669494001 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians