Doctor profile · Federal record
Dr. Karen Chang, MD
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Colorado Springs, CO
- NPI 1134121189
- Accepts Medicare
- 35 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8890 N Union Blvd, Ste 170
Colorado Springs, CO 809207799
(719) 572-5005
fax (719) 572-5551 - Mailing address
-
8890 N Union Blvd Ste 170
Colorado Springs, CO 809202701
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- April 20, 2020
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Colorado #DR-49665 · Florida #ME0074258
- Medicaid (2)
- CO #04839871 · FL #255227200
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134121189. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,478
Distinct HCPCS
10
Medicare allowed
$91,723
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 457 | 267 | $76 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 234 | 234 | $32 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 151 | 111 | $105 | |
83036 |
Hemoglobin a1c level | 99 | 66 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 81 | 70 | $71 | |
G0008 |
Administration of influenza virus vaccine | 81 | 81 | $31 | |
90662 |
Influenza vaccine split virus, preservative free | 77 | 77 | $71 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 52 | 50 | $15 | |
0124A |
Adm sarscv2 bvl 30mcg/.3ml a | 46 | 46 | $41 | |
96372 |
Injection of drug or substance under skin or into muscle | 41 | 14 | $14 |
In context: peer comparison
Among 37 peers in this city , average services per provider: 109. This provider delivers 14× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,908
Patients
595
Total drug cost
$25,601
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 335 | 103 | $4,532 |
| Levothyroxine Sodium | Generic | 299 | 82 | $3,605 |
| Rosuvastatin Calcium | Generic | 228 | 75 | $4,069 |
| Amlodipine Besylate | Generic | 126 | 42 | $1,029 |
| Losartan Potassium | Generic | 125 | 39 | $1,642 |
| Omeprazole | Generic | 118 | 39 | $1,888 |
| Lisinopril | Generic | 112 | 36 | $797 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 100 | 35 | $1,070 |
| Hydrochlorothiazide | Generic | 81 | 21 | $424 |
| Gabapentin | Generic | 68 | 22 | $1,890 |
Hospital affiliations
Frequently asked questions
What is Dr. Karen Chang's medical specialty?
Dr. Karen Chang practices Internal Medicine Physician in Colorado Springs, CO.
Where does Dr. Karen Chang practice?
Dr. Karen Chang practices at 8890 N Union Blvd, Colorado Springs, CO 809207799. Office phone: 7195725005.
What is Dr. Karen Chang's NPI?
Dr. Karen Chang's National Provider Identifier (NPI) is 1134121189, issued by NPPES.
Does Dr. Karen Chang accept Medicare assignment?
Yes. Dr. Karen Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Chang 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 99215). Source: CMS Medicare Physician & Other Practitioners file.