Doctor profile · Federal record
Dr. Mark Skier, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Bayview, WI
- NPI 1346234812
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3119 S Clement Ave
Bayview, WI 532072835
(414) 486-1900
fax (414) 486-4148 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- June 26, 2025
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Wisconsin #34018
- Medicaid
- WI #32030400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346234812. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
624
Distinct HCPCS
9
Medicare allowed
$59,584
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 245 | 146 | $111 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 137 | 137 | $111 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 115 | 93 | $81 | |
90662 |
Influenza vaccine split virus, preservative free | 36 | 36 | $72 | |
G0008 |
Administration of influenza virus vaccine | 35 | 35 | $29 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 19 | 19 | $12 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 14 | 13 | $47 | |
G0009 |
Administration of pneumococcal vaccine | 12 | 12 | $29 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 11 | 11 | $282 |
In context: peer comparison
Among 2 peers in Bayview Internal Medicine Physician, average services per provider: 85. This provider delivers 7.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
4,538
Patients
1,248
Total drug cost
$62,787
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 712 | 191 | $7,383 |
| Amlodipine Besylate | Generic | 529 | 156 | $3,531 |
| Losartan Potassium | Generic | 501 | 141 | $7,907 |
| Metoprolol Succinate | Generic | 400 | 107 | $7,914 |
| Levothyroxine Sodium | Generic | 362 | 95 | $6,391 |
| Lisinopril | Generic | 346 | 90 | $2,374 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 248 | 62 | $4,322 |
| Hydrochlorothiazide | Generic | 230 | 63 | $1,417 |
| Omeprazole | Generic | 185 | 53 | $3,494 |
| Rosuvastatin Calcium | Generic | 179 | 55 | $2,729 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Skier's medical specialty?
Dr. Mark Skier practices Internal Medicine Physician in Bayview, WI.
Where does Dr. Mark Skier practice?
Dr. Mark Skier practices at 3119 S Clement Ave, Bayview, WI 532072835. Office phone: 4144861900.
What is Dr. Mark Skier's NPI?
Dr. Mark Skier's National Provider Identifier (NPI) is 1346234812, issued by NPPES.
Does Dr. Mark Skier accept Medicare assignment?
Dr. Mark Skier does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mark Skier 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.