Doctor profile · Federal record
Dr. Richard Williamson, MD
Neurological Surgery Physician (CMS: Neurosurgery) · Neurological Surgery Physician · Chandler, AZ
- NPI 1609040609
- Accepts Medicare
- MIPS 92.5 / 100 · 2023
- 17 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1875 W Frye RD Ste 300
Chandler, AZ 852246184
(480) 917-5600
fax (602) 294-8286 - Mailing address
-
2910 N 3Rd Ave # 200
Phoenix, AZ 850134434
Credentials & registration
- NPI registered
- April 2008 — 18 yrs on file
- Profile last updated
- May 8, 2025
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State licenses (2)
- Arizona #47644 · Pennsylvania #MD457377
- Medicaid (2)
- PA #103120121 · AZ #186944
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609040609. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
513
Distinct HCPCS
10
Medicare allowed
$71,740
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 114 | 99 | $80 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 91 | 80 | $120 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 70 | 68 | $126 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 65 | 41 | $78 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 44 | 44 | $155 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 29 | 27 | $150 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 | $170 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 16 | 16 | $79 | |
76937 |
Ultrasonic guidance for blood vessel access | 15 | 13 | $14 | |
36226 |
Insertion of tube into brain artery for diagnosis or treatment with review by radiologist | 14 | 13 | $259 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 37. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$8,293
Transactions
25
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medical Device Business Services, Inc. | 13 | $7,215.29 | |
| Penumbra, Inc. | 6 | $503.18 | |
| DePuy Synthes Sales Inc. | 4 | $423.57 | |
| Smith+Nephew, Inc. | 1 | $136.73 | |
| Medtronic, Inc. | 1 | $14.16 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
143
Patients
63
Total drug cost
$881
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 63 | 24 | $366 |
| Gabapentin | Generic | 19 | 11 | $282 |
| Meloxicam | Generic | 17 | 0 | $36 |
| Prednisone | Generic | 17 | 13 | $34 |
| Mupirocin | Generic | 16 | 15 | $129 |
| Tizanidine Hcl | Generic | 11 | 0 | $34 |
Frequently asked questions
What is Dr. Richard Williamson's medical specialty?
Dr. Richard Williamson practices Neurological Surgery Physician in Chandler, AZ.
Where does Dr. Richard Williamson practice?
Dr. Richard Williamson practices at 1875 W Frye RD Ste 300, Chandler, AZ 852246184. Office phone: 4809175600.
What is Dr. Richard Williamson's NPI?
Dr. Richard Williamson's National Provider Identifier (NPI) is 1609040609, issued by NPPES.
Does Dr. Richard Williamson accept Medicare assignment?
Yes. Dr. Richard Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Richard Williamson 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); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.