Doctor profile · Federal record
Dr. Karla Wallen, NP-C
Family Nurse Practitioner (CMS: Nurse Practitioner) · Longmont, CO
- NPI 1598420739
- Accepts Medicare
- 5 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2101 Ken Pratt Blvd Ste 200
Longmont, CO 805016568
(303) 649-3500
fax (303) 649-3501 - Mailing address
-
Po Box 800022
Kansas City, MO 641800022
Credentials & registration
- NPI registered
- November 2021 — 5 yrs on file
- Profile last updated
- December 15, 2021
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Colorado #APN.0997083-NP
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598420739. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
199
Distinct HCPCS
4
Medicare allowed
$13,013
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 111 | 53 | $87 | |
36415 |
Insertion of needle into vein for collection of blood sample | 39 | 26 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 30 | 29 | $74 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 19 | 19 | $40 |
In context: peer comparison
Among 11 peers in this city , average services per provider: 49. This provider delivers 4.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
499
Patients
159
Total drug cost
$6,987
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 66 | 29 | $824 |
| Levothyroxine Sodium | Generic | 53 | 22 | $867 |
| Lisinopril | Generic | 53 | 20 | $414 |
| Amlodipine Besylate | Generic | 52 | 14 | $456 |
| Metformin Hcl | Generic | 43 | 18 | $363 |
| Sertraline Hcl | Generic | 31 | 12 | $330 |
| Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) | Brand | 26 | 0 | $311 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 26 | 14 | $361 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 23 | 19 | $222 |
| Gabapentin | Generic | 23 | 11 | $287 |
Frequently asked questions
What is Dr. Karla Wallen's medical specialty?
Dr. Karla Wallen practices Family Nurse Practitioner in Longmont, CO.
Where does Dr. Karla Wallen practice?
Dr. Karla Wallen practices at 2101 Ken Pratt Blvd Ste 200, Longmont, CO 805016568. Office phone: 3036493500.
What is Dr. Karla Wallen's NPI?
Dr. Karla Wallen's National Provider Identifier (NPI) is 1598420739, issued by NPPES.
Does Dr. Karla Wallen accept Medicare assignment?
Yes. Dr. Karla Wallen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karla Wallen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.