Doctor profile · Federal record
Dr. William Merriam, M.D.
Urology Physician (CMS: Urology) · West Chester, PA
- NPI 1912043258
- Accepts Medicare
- MIPS 92.4 / 100 · 2023
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
915 Old Fern Hill RD, Building B Ste 202
West Chester, PA 193804269
(610) 692-4270
fax (610) 692-2566
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- October 21, 2011
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 208800000X — NUCC code
- State license (1)
- Pennsylvania #MD427453
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912043258. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,416
Distinct HCPCS
10
Medicare allowed
$265,040
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
51798 |
Ultrasound measurement of bladder capacity after voiding | 641 | 522 | $12 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 641 | 526 | $96 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 543 | 433 | $134 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 351 | 65 | $66 | |
52000 |
Diagnostic exam of bladder and urethra using an endoscope | 202 | 168 | $84 | |
81003 |
Automated urinalysis test | 162 | 152 | $2 | |
51741 |
Electronic assessment of bladder emptying | 142 | 132 | $14 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 98 | 98 | $119 | |
52442 |
Insertion of implant in urethra within prostate gland using an endoscope, each additional implant | 81 | 22 | $53 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 72 | 59 | $52 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 214. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$1,834
Transactions
53
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| PROCEPT BioRobotics Corporation | 2 | $247.58 | |
| Dendreon Pharmaceuticals LLC | 2 | $215.68 | |
| Sumitomo Pharma America, Inc. | 11 | $207.62 | |
| Teleflex LLC | 3 | $191.71 | |
| PFIZER INC. | 8 | $144.10 | |
| Astellas Pharma US Inc | 5 | $91.51 | |
| Bayer Healthcare Pharmaceuticals Inc. | 3 | $91.08 | |
| Merck Sharp & Dohme LLC | 3 | $82.86 | |
| Janssen Biotech, Inc. | 3 | $76.74 | |
| ABBVIE INC. | 3 | $66.15 | |
| Tolmar, Inc. | 3 | $65.47 | |
| Laborie Medical Technologies Corp. | 1 | $57.28 | |
| Axonics, Inc. | 2 | $51.15 | |
| Myriad Genetic Laboratories, Inc. | 2 | $44.96 | |
| Antares Pharma, Inc. | 2 | $43.60 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,051
Patients
592
Total drug cost
$1,839,978
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 839 | 244 | $18,992 |
| Finasteride | Generic | 387 | 118 | $6,518 |
| Orgovyx (Relugolix) | Brand | 148 | 19 | $404,798 |
| Alfuzosin Hcl Er (Alfuzosin Hcl) | Brand | 94 | 24 | $2,334 |
| Myrbetriq (Mirabegron) | Brand | 86 | 21 | $74,509 |
| Potassium Citrate Er (Potassium Citrate) | Brand | 78 | 14 | $9,405 |
| Xtandi (Enzalutamide) | Brand | 66 | 0 | $882,362 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 63 | 54 | $502 |
| Dutasteride | Generic | 58 | 17 | $3,393 |
| Silodosin | Generic | 49 | 13 | $6,328 |
Hospital affiliations
Frequently asked questions
What is Dr. William Merriam's medical specialty?
Dr. William Merriam practices Urology Physician in West Chester, PA.
Where does Dr. William Merriam practice?
Dr. William Merriam practices at 915 Old Fern Hill RD, West Chester, PA 193804269. Office phone: 6106924270.
What is Dr. William Merriam's NPI?
Dr. William Merriam's National Provider Identifier (NPI) is 1912043258, issued by NPPES.
Does Dr. William Merriam accept Medicare assignment?
Yes. Dr. William Merriam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Merriam commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound measurement of bladder capacity after voiding (HCPCS 51798); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.