Doctor profile · Federal record
Dr. Margaret Libby, NP-C
Family Nurse Practitioner (CMS: Nurse Practitioner) · South Portland, ME
- NPI 1619359007
- Accepts Medicare
- 11 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 Foden RD, Suite 203
South Portland, ME 041062327
(207) 874-1489
fax (207) 523-8590 - Mailing address
-
100 Gannett Dr, Suite C
South Portland, ME 041065900
Credentials & registration
- NPI registered
- June 2015 — 11 yrs on file
- Profile last updated
- March 6, 2026
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 363LF0000X — NUCC code
- State license (1)
- Maine #CNP151055
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1619359007. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
199
Distinct HCPCS
5
Medicare allowed
$13,199
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 100 | 72 | $76 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 53 | 42 | $65 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 17 | 17 | $38 | |
G0008 |
Administration of influenza virus vaccine | 15 | 15 | $30 | |
90662 |
Influenza vaccine split virus, preservative free | 14 | 14 | $72 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 61. This provider delivers 3.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
396
Patients
181
Total drug cost
$152,282
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 44 | 24 | $486 |
| Ozempic (Semaglutide) | Brand | 39 | 12 | $40,961 |
| Jardiance (Empagliflozin) | Brand | 37 | 13 | $46,934 |
| Prednisone | Generic | 29 | 28 | $69 |
| Amlodipine Besylate | Generic | 28 | 14 | $229 |
| Zolpidem Tartrate | Generic | 28 | 14 | $239 |
| Trulicity (Dulaglutide) | Brand | 27 | 0 | $40,392 |
| Doxycycline Hyclate | Generic | 24 | 24 | $427 |
| Lisinopril | Generic | 22 | 0 | $84 |
| Tramadol Hcl | Generic | 22 | 18 | $97 |
Frequently asked questions
What is Dr. Margaret Libby's medical specialty?
Dr. Margaret Libby practices Family Nurse Practitioner in South Portland, ME.
Where does Dr. Margaret Libby practice?
Dr. Margaret Libby practices at 100 Foden RD, South Portland, ME 041062327. Office phone: 2078741489.
What is Dr. Margaret Libby's NPI?
Dr. Margaret Libby's National Provider Identifier (NPI) is 1619359007, issued by NPPES.
Does Dr. Margaret Libby accept Medicare assignment?
Yes. Dr. Margaret Libby accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Libby commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.