Sarah Kohnstamm, M.D.
NPI 1679691521 · Cardiovascular Disease Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Kohnstamm, M.D. is a Cardiovascular Disease Physician provider in Ann Arbor, MI (NPI 1679691521).
Provider details
- NPI number
- 1679691521
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 4301083663 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1,576 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 259 | $67 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 234 | $67 |
| Heart Muscle Strain Imaging93356 | 160 | $11 |
| 3d Radiographic Procedure With Computerized Image Postprocessing76377 | 159 | $37 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 111 | $79 |
| 3d Radiographic Procedure With Computerized Image Postprocessing76377 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 147 | 52 |
| Metoprolol Succinate | 140 | 48 |
| Rosuvastatin Calcium | 115 | 45 |
| Furosemide | 88 | 33 |
| Apixabanbrand: Eliquis | 68 | 23 |
| Ezetimibe | 67 | 22 |
| Lisinopril | 63 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-27
- Last updated
- 2020-02-14
- Certified
- 2020-02-14
Frequently asked questions
- What is Sarah Kohnstamm's NPI number?
- Sarah Kohnstamm's National Provider Identifier (NPI) is 1679691521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Kohnstamm's specialty?
- Sarah Kohnstamm is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Sarah Kohnstamm located?
- Sarah Kohnstamm's practice location on file with NPPES is 24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105-9484.
- What is Sarah Kohnstamm's phone number?
- The practice phone number listed in the NPPES registry for Sarah Kohnstamm is (734) 998-7400.
- Does Sarah Kohnstamm accept Medicare?
- Sarah Kohnstamm is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Kohnstamm's NPI active?
- Yes — Sarah Kohnstamm's NPI (1679691521) is active in the NPPES registry as of the last update on 2020-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.