Doctor profile · Federal record
Dr. William Shaffer, M.D.
Neurology Physician (CMS: Neurology) · Neurology Physician · Boulder, CO
- NPI 1801044722
- Accepts Medicare
- MIPS 93.3 / 100 · 2023
- 22 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4801 Riverbend RD Ste 200
Boulder, CO 803012613
(303) 415-8800
fax (303) 415-8801 - Additional location
-
2315 E Harmony RD, Suite 110
Fort Collins, CO 805288620
(970) 482-4373
fax (970) 484-5682 - Mailing address
-
Po Box 9049
Boulder, CO 803019049
Credentials & registration
- NPI registered
- September 2008 — 18 yrs on file
- Profile last updated
- September 27, 2024
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State licenses (2)
- Colorado #DR.0047669 · Illinois #036.121384
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801044722. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13,451
Distinct HCPCS
4
Medicare allowed
$123,872
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0585 |
Injection, onabotulinumtoxina, 1 unit | 13,200 | 29 | $6 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 159 | 128 | $182 | |
64615 |
Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face | 68 | 29 | $150 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 24 | 24 | $217 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 1,707. This provider delivers 7.9× the peer median.Open Payments
Industry payments received
All-time total
$39,781
Transactions
29
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| EMD Serono, Inc. | 27 | $39,750.43 | |
| CATALYST PHARMACEUTICALS, INC. | 2 | $30.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,441
Patients
433
Total drug cost
$8,143,183
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Aubagio (Teriflunomide) | Brand | 307 | 42 | $3,256,822 |
| Baclofen | Generic | 280 | 52 | $9,057 |
| Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) | Brand | 216 | 47 | $10,624 |
| Diclofenac Sodium | Generic | 196 | 66 | $3,699 |
| Lacosamide | Generic | 188 | 40 | $44,388 |
| Gabapentin | Generic | 172 | 28 | $5,112 |
| Rebif Rebidose (Interferon Beta-1a/Albumin) | Brand | 156 | 16 | $1,703,420 |
| Rebif (Interferon Beta-1a/Albumin) | Brand | 153 | 13 | $1,628,889 |
| Copaxone (Glatiramer Acetate) | Brand | 149 | 16 | $948,841 |
| Verapamil Hcl | Generic | 140 | 31 | $1,576 |
Hospital affiliations
Frequently asked questions
What is Dr. William Shaffer's medical specialty?
Dr. William Shaffer practices Neurology Physician in Boulder, CO.
Where does Dr. William Shaffer practice?
Dr. William Shaffer practices at 4801 Riverbend RD Ste 200, Boulder, CO 803012613. Office phone: 3034158800.
What is Dr. William Shaffer's NPI?
Dr. William Shaffer's National Provider Identifier (NPI) is 1801044722, issued by NPPES.
Does Dr. William Shaffer accept Medicare assignment?
Yes. Dr. William Shaffer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Shaffer commonly perform?
Top Medicare-reported procedures in 2023: Injection, onabotulinumtoxina, 1 unit (HCPCS J0585); Established patient office or other outpatient visit (HCPCS 99215); Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (HCPCS 64615). Source: CMS Medicare Physician & Other Practitioners file.