Doctor profile · Federal record
Dr. Sean Cassleman, DO
Internal Medicine Physician (CMS: Internal Medicine) · Saint Clair Shores, MI
- NPI 1720404775
- Accepts Medicare
- MIPS 78.6 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
21000 E 12 Mile RD
Saint Clair Shores, MI 480811116
(313) 598-0799 - Additional location
-
21444 Harper Ave
Saint Clair Shores, MI 480802244
(586) 200-4265 - Mailing address
-
1025 Bishop RD
Grosse Pointe Park, MI 482301447
Credentials & registration
- NPI registered
- March 2014 — 12 yrs on file
- Profile last updated
- November 1, 2025
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #5101020867
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720404775. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
513
Distinct HCPCS
8
Medicare allowed
$50,862
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 196 | 111 | $127 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 133 | 84 | $88 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 75 | 75 | $131 | |
83036 |
Hemoglobin a1c level | 29 | 21 | $10 | |
G0008 |
Administration of influenza virus vaccine | 25 | 25 | $31 | |
90662 |
Influenza vaccine split virus, preservative free | 23 | 23 | $72 | |
99497 |
Advance care planning, first 30 minutes | 18 | 18 | $85 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 14 | 13 | $15 |
In context: peer comparison
Among 11 peers in Saint Clair Shores Internal Medicine Physician, average services per provider: 98. This provider delivers 5.2× the peer median.Open Payments
Industry payments received
All-time total
$138
Transactions
8
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 2 | $36.21 | |
| Novo Nordisk INC | 2 | $31.05 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $18.92 | |
| Pfizer INC. | 1 | $18.80 | |
| Abbott Laboratories | 1 | $18.71 | |
| GlaxoSmithKline, LLC. | 1 | $14.77 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,023
Patients
618
Total drug cost
$110,406
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 364 | 95 | $6,609 |
| Levothyroxine Sodium | Generic | 250 | 62 | $4,577 |
| Losartan Potassium | Generic | 206 | 61 | $3,998 |
| Amlodipine Besylate | Generic | 147 | 49 | $1,815 |
| Lisinopril | Generic | 145 | 48 | $2,084 |
| Metformin Hcl | Generic | 135 | 40 | $1,158 |
| Hydrochlorothiazide | Generic | 122 | 35 | $711 |
| Omeprazole | Generic | 111 | 36 | $1,504 |
| Rosuvastatin Calcium | Generic | 95 | 38 | $2,620 |
| Tamsulosin Hcl | Generic | 87 | 31 | $1,973 |
Hospital affiliations
Frequently asked questions
What is Dr. Sean Cassleman's medical specialty?
Dr. Sean Cassleman practices Internal Medicine Physician in Saint Clair Shores, MI.
Where does Dr. Sean Cassleman practice?
Dr. Sean Cassleman practices at 21000 E 12 Mile RD, Saint Clair Shores, MI 480811116. Office phone: 3135980799.
What is Dr. Sean Cassleman's NPI?
Dr. Sean Cassleman's National Provider Identifier (NPI) is 1720404775, issued by NPPES.
Does Dr. Sean Cassleman accept Medicare assignment?
Yes. Dr. Sean Cassleman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean Cassleman commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.