Doctor profile · Federal record

Dr. Douglas Dreher, M.D.

Family Medicine Physician (CMS: Family Practice) · Chesterton, IN

  • NPI 1285604355
  • Accepts Medicare
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
810 Michael Dr Ste I
Chesterton, IN 463042695
(219) 395-2142
fax (219) 929-4292
Mailing address
Po Box 781076
Detroit, MI 482781076

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
May 23, 2023
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Indiana #01053892A
Medicaid
IN #200238810

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285604355. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,170
Distinct HCPCS
10
Medicare allowed
$127,620
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 740 188 $119
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 160 160 $123
G0008 Administration of influenza virus vaccine 79 79 $29
99213 Established patient office or other outpatient visit, 20-29 minutes 57 43 $84
90662 Influenza vaccine split virus, preservative free 52 52 $71
90682 Influenza vaccine, quadrivalent derived from recombinant dna 25 25 $71
G0009 Administration of pneumococcal vaccine 17 17 $29
99496 Transitional care management services for problem of high complexity 15 14 $262
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 14 12 $50
99495 Transitional care management services for problem of at least moderate complexity 11 11 $188

In context: peer comparison

Among 3 peers in Chesterton Family Medicine Physician, average services per provider: 102. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,986
Transactions
19
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Genzyme Corporation 4 $2,667.12
AstraZeneca Pharmaceuticals Lp 3 $62.87
Lilly USA, LLC 3 $62.54
Abbvie INC. 2 $53.82
Novo Nordisk INC 2 $42.26
Boston Scientific Corporation 1 $30.41
Abbott Laboratories 1 $17.10
Novartis Pharmaceuticals Corporation 1 $16.98
Idorsia Pharmaceuticals US INC 1 $16.88
Exact Sciences Corporation 1 $15.93

By nature of payment

Consulting Fee
$2,496
Food and Beverage
$414
Travel and Lodging
$76

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,194
Patients
615
Total drug cost
$26,879
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 473 124 $4,923
Amlodipine Besylate Generic 267 69 $1,540
Rosuvastatin Calcium Generic 192 60 $3,243
Lisinopril Generic 163 48 $1,091
Pantoprazole Sodium Generic 158 50 $2,263
Levothyroxine Sodium Generic 144 41 $1,710
Metoprolol Succinate Generic 116 35 $1,906
Tamsulosin Hcl Generic 95 30 $2,470
Valsartan Generic 94 26 $2,686
Hydrochlorothiazide Generic 92 33 $341

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Douglas Dreher's medical specialty?
Dr. Douglas Dreher practices Family Medicine Physician in Chesterton, IN.
Where does Dr. Douglas Dreher practice?
Dr. Douglas Dreher practices at 810 Michael Dr Ste I, Chesterton, IN 463042695. Office phone: 2193952142.
What is Dr. Douglas Dreher's NPI?
Dr. Douglas Dreher's National Provider Identifier (NPI) is 1285604355, issued by NPPES.
Does Dr. Douglas Dreher accept Medicare assignment?
Yes. Dr. Douglas Dreher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Douglas Dreher commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.