Doctor profile · Federal record
Dr. Mark Obermyer, MD
Internal Medicine Physician (CMS: Pediatric Medicine) · Internal Medicine Physician · Pediatrics Physician · Pediatrics Physician · Brookfield, WI
- NPI 1669634820
- Accepts Medicare
- 22 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
21700 Intertech Dr, Springdale Health Center
Brookfield, WI 530455197
(262) 532-8300
fax (262) 532-8600
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- July 10, 2012
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Wisconsin #51868 · Illinois #036118405
- Medicaid
- WI #1669634820
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669634820. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
333
Distinct HCPCS
6
Medicare allowed
$41,854
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 129 | 103 | $122 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 97 | 97 | $124 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 40 | 37 | $86 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 31 | 27 | $171 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 18 | 18 | $281 | |
G0009 |
Administration of pneumococcal vaccine | 18 | 18 | $20 |
In context: peer comparison
Among 16 peers in Brookfield Internal Medicine Physician, average services per provider: 91. This provider delivers 3.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,359
Patients
683
Total drug cost
$34,418
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 492 | 145 | $6,156 |
| Losartan Potassium | Generic | 214 | 64 | $3,338 |
| Levothyroxine Sodium | Generic | 208 | 59 | $4,120 |
| Lisinopril | Generic | 191 | 54 | $1,546 |
| Simvastatin | Generic | 175 | 47 | $1,607 |
| Omeprazole | Generic | 147 | 41 | $2,746 |
| Amlodipine Besylate | Generic | 144 | 51 | $1,040 |
| Hydrochlorothiazide | Generic | 140 | 42 | $721 |
| Metformin Hcl | Generic | 135 | 36 | $3,540 |
| Rosuvastatin Calcium | Generic | 106 | 32 | $1,722 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Obermyer's medical specialty?
Dr. Mark Obermyer practices Internal Medicine Physician in Brookfield, WI.
Where does Dr. Mark Obermyer practice?
Dr. Mark Obermyer practices at 21700 Intertech Dr, Brookfield, WI 530455197. Office phone: 2625328300.
What is Dr. Mark Obermyer's NPI?
Dr. Mark Obermyer's National Provider Identifier (NPI) is 1669634820, issued by NPPES.
Does Dr. Mark Obermyer accept Medicare assignment?
Yes. Dr. Mark Obermyer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Obermyer 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.