Quick answers
- Does Diana J. Carlson accept Medicare assignment?
- Yes. Medicare's clinician data says Diana J. Carlson 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 Diana J. Carlson see?
- In 2024, CMS data shows 189 Original Medicare patients and 644 services for Diana J. Carlson. This counts Original Medicare only and measures volume, not quality.
- What is Diana J. Carlson's NPI number?
- 1689825564. 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 Diana J. Carlson, 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 | 189 |
|---|---|
| Services billed to Medicare | 644 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)120 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)95 services
- Insertion of needle into vein for collection of blood sample (36415)83 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)65 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)52 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 blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease41%
- Diabetes39%
- Heart failure31%
Hospitals where Diana J. Carlson works
Medicare's Facility Affiliation Data lists Diana J. Carlson 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.
- Huron Valley-Sinai HospitalCommerce Township, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230277
Practice locations
Addresses where Diana J. Carlson is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 N Pond Dr, Suite CWalled Lake, MI 48390 (248) 624‑2222
Group practices
Medicare enrollment lists Diana J. Carlson as a member of this group (CMS data updated October 2, 2026).
- Pillay Internal Medicine Associates, PLLC3 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Walled Lake
Clinicians with the same Medicare primary specialty in Walled Lake, MI — not a recommendation.
Other clinicians in Pillay Internal Medicine Associates, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689825564 |
| 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