Doctor profile · Federal record
Dr. Lisa Hamaker, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Collegeville, PA
- NPI 1003024811
- Accepts Medicare
- 24 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
100 Market St Ste 300
Collegeville, PA 194264927
(484) 622-6401
fax (484) 622-6403 - Mailing address
-
Po Box 789967
Philadelphia, PA 191789967
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- February 4, 2019
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Pennsylvania #MD426368
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003024811. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
395
Distinct HCPCS
4
Medicare allowed
$50,477
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 329 | 174 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 35 | $93 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 13 | 13 | $87 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $136 |
In context: peer comparison
Among 2 peers in Collegeville Endocrinology, Diabetes & Metabolism Physician, average services per provider: 95. This provider delivers 4.2× the peer median.Open Payments
Industry payments received
All-time total
$380
Transactions
23
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Corcept Therapeutics | 17 | $262.35 | |
| Lilly USA, LLC | 2 | $32.93 | |
| Tandem Diabetes Care, INC. | 1 | $31.26 | |
| Sanofi-Aventis U.S. LLC | 1 | $21.67 | |
| Abbvie INC. | 1 | $19.10 | |
| Dexcom, INC. | 1 | $13.07 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,655
Patients
427
Total drug cost
$631,602
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Synthroid (Levothyroxine Sodium) | Brand | 261 | 63 | $25,431 |
| Levothyroxine Sodium | Generic | 192 | 49 | $3,532 |
| Glimepiride | Generic | 169 | 46 | $2,601 |
| Metformin Hcl | Generic | 145 | 43 | $1,705 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 138 | 39 | $3,003 |
| Jardiance (Empagliflozin) | Brand | 125 | 26 | $134,973 |
| Ozempic (Semaglutide) | Brand | 121 | 24 | $158,685 |
| Trulicity (Dulaglutide) | Brand | 104 | 20 | $163,558 |
| Atorvastatin Calcium | Generic | 72 | 19 | $1,190 |
| Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 63 | 19 | $4,788 |
Frequently asked questions
What is Dr. Lisa Hamaker's medical specialty?
Dr. Lisa Hamaker practices Endocrinology, Diabetes & Metabolism Physician in Collegeville, PA.
Where does Dr. Lisa Hamaker practice?
Dr. Lisa Hamaker practices at 100 Market St Ste 300, Collegeville, PA 194264927. Office phone: 4846226401.
What is Dr. Lisa Hamaker's NPI?
Dr. Lisa Hamaker's National Provider Identifier (NPI) is 1003024811, issued by NPPES.
Does Dr. Lisa Hamaker accept Medicare assignment?
Yes. Dr. Lisa Hamaker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lisa Hamaker 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); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.