Doctor profile · Federal record

Dr. John Siano, MD

Internal Medicine Physician · Lansing, MI

  • NPI 1689628067
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1200 E Michigan Ave, Suite 500
Lansing, MI 489121800
(517) 484-4033
fax (517) 484-2701

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
April 23, 2015
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Michigan #430051450
Medicaid
MI #1689628067

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689628067. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
609
Distinct HCPCS
7
Medicare allowed
$46,434
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 305 174 $94
99213 Established patient office or other outpatient visit, 20-29 minutes 111 88 $64
93793 Anticoagulant management of patient taking warfarin 82 14 $11
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 41 41 $123
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 39 16 $49
99215 Established patient office or other outpatient visit, 40-54 minutes 20 18 $138
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 11 11 $8

In context: peer comparison

Among 30 peers in Lansing Internal Medicine Physician, average services per provider: 105. This provider delivers 5.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,746
Transactions
81
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 11 $211.55
Novo Nordisk INC 11 $187.03
GlaxoSmithKline, LLC. 9 $161.30
Lilly USA, LLC 9 $142.94
Bayer Healthcare Pharmaceuticals INC. 7 $134.03
Mallinckrodt Hospital Products INC. 4 $124.61
Boehringer Ingelheim Pharmaceuticals, INC. 5 $108.82
ViiV Healthcare Company 6 $107.33
Astellas Pharma US INC 3 $81.50
Otsuka America Pharmaceutical, INC. 3 $68.75
Amgen INC. 3 $59.95
Abbvie INC. 3 $48.37
AstraZeneca Pharmaceuticals Lp 3 $45.03
Abbott Laboratories 2 $44.62
Novartis Pharmaceuticals Corporation 2 $40.72

By nature of payment

Food and Beverage
$1,746

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,660
Patients
821
Total drug cost
$388,183
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 326 101 $6,448
Levothyroxine Sodium Generic 287 91 $4,654
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 257 61 $7,383
Amlodipine Besylate Generic 222 76 $2,659
Lisinopril Generic 222 73 $2,112
Losartan Potassium Generic 187 60 $3,644
Rosuvastatin Calcium Generic 179 57 $5,689
Ozempic (Semaglutide) Brand 146 33 $224,678
Omeprazole Generic 140 49 $2,950
Gabapentin Generic 131 40 $4,695

Frequently asked questions

Auto-generated from federal data
What is Dr. John Siano's medical specialty?
Dr. John Siano practices Internal Medicine Physician in Lansing, MI.
Where does Dr. John Siano practice?
Dr. John Siano practices at 1200 E Michigan Ave, Lansing, MI 489121800. Office phone: 5174844033.
What is Dr. John Siano's NPI?
Dr. John Siano's National Provider Identifier (NPI) is 1689628067, issued by NPPES.
What procedures does Dr. John Siano 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); Anticoagulant management of patient taking warfarin (HCPCS 93793). Source: CMS Medicare Physician & Other Practitioners file.