Doctor profile · Federal record
Dr. Margaret Lewis
Gastroenterology Physician (CMS: Nurse Practitioner) · Family Nurse Practitioner · Malvern, PA
- NPI 1740991389
- Accepts Medicare
- 6 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
325 Central Ave Ste 200
Malvern, PA 193553265
(610) 644-6755 - Mailing address
-
Po Box 232
Skippack, PA 194740232
Credentials & registration
- NPI registered
- December 2022 — 4 yrs on file
- Profile last updated
- September 22, 2023
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Pennsylvania #SP023866
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740991389. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
190
Distinct HCPCS
5
Medicare allowed
$19,342
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 67 | 62 | $80 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 45 | 44 | $113 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $147 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 21 | 21 | $99 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 16 | 15 | $50 |
In context: peer comparison
Among 3 peers in Malvern Gastroenterology Physician, average services per provider: 255. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$2,794
Transactions
125
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., INC. | 29 | $683.37 | |
| Abbvie INC. | 24 | $513.50 | |
| Janssen Biotech, INC. | 17 | $359.85 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 16 | $268.23 | |
| Regeneron Healthcare Solutions, INC. | 6 | $220.33 | |
| Intercept Pharmaceuticals, INC. | 6 | $104.41 | |
| Genzyme Corporation | 5 | $94.55 | |
| Lilly USA, LLC | 4 | $80.48 | |
| Ardelyx, INC. | 4 | $72.19 | |
| Evoke Pharma, INC. | 3 | $57.59 | |
| Pfizer INC. | 3 | $55.95 | |
| Qol Medical, LLC | 2 | $54.94 | |
| Ipsen Biopharmaceuticals, INC | 2 | $38.77 | |
| Celgene Corporation | 2 | $38.66 | |
| Ferring Pharmaceuticals INC. | 2 | $37.66 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
0
Total drug cost
$93
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 11 | 0 | $93 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Lewis's medical specialty?
Dr. Margaret Lewis practices Gastroenterology Physician in Malvern, PA.
Where does Dr. Margaret Lewis practice?
Dr. Margaret Lewis practices at 325 Central Ave Ste 200, Malvern, PA 193553265. Office phone: 6106446755.
What is Dr. Margaret Lewis's NPI?
Dr. Margaret Lewis's National Provider Identifier (NPI) is 1740991389, issued by NPPES.
Does Dr. Margaret Lewis accept Medicare assignment?
Yes. Dr. Margaret Lewis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Lewis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.