Doctor profile · Federal record
Dr. Karen Loos, CRNP
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Acute Care Nurse Practitioner · Gerontology Nurse Practitioner · Philadelphia, PA
- NPI 1063977973
- Accepts Medicare
- 15 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1015 Chestnut St
Philadelphia, PA 191074316
(215) 955-4730 - Additional location
-
3 Crescent Dr Fl 2
Philadelphia, PA 191121016
(215) 503-7084
fax (215) 503-3191 - Mailing address
-
208 Hillsboro Mills Ln
Wallingford, PA 190866784
Credentials & registration
- NPI registered
- February 2019 — 7 yrs on file
- Profile last updated
- June 20, 2019
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- Pennsylvania #SP017948
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1063977973. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
31
Distinct HCPCS
2
Medicare allowed
$3,701
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 20 | 20 | $120 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $119 |
In context: peer comparison
Among 83 peers in Philadelphia Adult Health Nurse Practitioner, average services per provider: 72. This provider delivers 0.4× the peer median.Open Payments
Industry payments received
All-time total
$222
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | 2 | $221.90 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Karen Loos's medical specialty?
Dr. Karen Loos practices Adult Health Nurse Practitioner in Philadelphia, PA.
Where does Dr. Karen Loos practice?
Dr. Karen Loos practices at 1015 Chestnut St, Philadelphia, PA 191074316. Office phone: 2159554730.
What is Dr. Karen Loos's NPI?
Dr. Karen Loos's National Provider Identifier (NPI) is 1063977973, issued by NPPES.
Does Dr. Karen Loos accept Medicare assignment?
Yes. Dr. Karen Loos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Loos commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.