Doctor profile · Federal record
Dr. John Vassallo, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Howell, MI
- NPI 1275590119
- Accepts Medicare
- 25 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1225 W Grand River Ave Ste 300
Howell, MI 488433970
(517) 548-0010
fax (517) 548-5326
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- May 11, 2023
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Michigan #JV078585
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275590119. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,913
Distinct HCPCS
10
Medicare allowed
$196,674
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 446 | 225 | $121 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 259 | 221 | $175 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 216 | 144 | $84 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 167 | 167 | $123 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 166 | 88 | $71 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 152 | 152 | $16 | |
99305 |
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 123 | 112 | $128 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 112 | 75 | $102 | |
99304 |
Initial nursing facility care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 55 | 49 | $77 | |
99307 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 34 | 28 | $38 |
In context: peer comparison
Among 3 peers in Howell Internal Medicine Physician, average services per provider: 98. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$1,083
Transactions
44
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 11 | $216.37 | |
| Lexicon Pharmaceuticals, INC. | 3 | $74.76 | |
| Bayer Healthcare Pharmaceuticals INC. | 3 | $65.39 | |
| Lilly USA, LLC | 4 | $60.87 | |
| Abbott Laboratories | 3 | $53.86 | |
| Ucb, INC. | 3 | $49.91 | |
| Scpharmaceuticals INC. | 3 | $48.02 | |
| Collegium Pharmaceutical, INC. | 2 | $41.04 | |
| Nevro Corp. | 1 | $40.32 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $39.13 | |
| Exact Sciences Corporation | 2 | $35.06 | |
| Abbvie INC. | 2 | $32.20 | |
| Novo Nordisk INC | 2 | $31.58 | |
| GlaxoSmithKline, LLC. | 2 | $31.27 | |
| Sanofi-Aventis U.S. LLC | 1 | $27.62 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
8,070
Patients
1,597
Total drug cost
$345,618
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,274 | 273 | $22,146 |
| Levothyroxine Sodium | Generic | 868 | 176 | $11,497 |
| Lisinopril | Generic | 826 | 173 | $8,656 |
| Gabapentin | Generic | 687 | 96 | $9,529 |
| Furosemide | Generic | 590 | 107 | $5,399 |
| Eliquis (Apixaban) | Brand | 557 | 85 | $230,102 |
| Amlodipine Besylate | Generic | 507 | 103 | $5,027 |
| Losartan Potassium | Generic | 359 | 103 | $6,601 |
| Sertraline Hcl | Generic | 355 | 51 | $4,737 |
| Tamsulosin Hcl | Generic | 355 | 81 | $10,909 |
Hospital affiliations
Frequently asked questions
What is Dr. John Vassallo's medical specialty?
Dr. John Vassallo practices Internal Medicine Physician in Howell, MI.
Where does Dr. John Vassallo practice?
Dr. John Vassallo practices at 1225 W Grand River Ave Ste 300, Howell, MI 488433970. Office phone: 5175480010.
What is Dr. John Vassallo's NPI?
Dr. John Vassallo's National Provider Identifier (NPI) is 1275590119, issued by NPPES.
Does Dr. John Vassallo accept Medicare assignment?
Yes. Dr. John Vassallo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Vassallo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Initial nursing facility care with high level of medical decision making (HCPCS 99306); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.