Doctor profile · Federal record
Dr. De-Ann Williams, M.D.
Rheumatology Physician (CMS: Internal Medicine) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Yakima, WA
- NPI 1699114843
- Accepts Medicare
- MIPS 88.4 / 100 · 2023
- 19 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1470 N 16Th Ave
Yakima, WA 98902
(509) 574-6000
fax (509) 225-2714 - Mailing address
-
3800 Summitview Ave
Yakima, WA 989022715
Credentials & registration
- NPI registered
- June 2013 — 13 yrs on file
- Profile last updated
- October 22, 2019
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Washington #MD60803850
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699114843. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
608
Distinct HCPCS
5
Medicare allowed
$52,170
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 292 | 167 | $97 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 268 | 181 | $66 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 21 | 17 | $143 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 15 | 15 | $180 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 12 | 12 | $35 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 121. This provider delivers 5.0× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| UCB, Inc. | 1 | $18.63 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,416
Patients
332
Total drug cost
$2,755,492
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 258 | 80 | $12,424 |
| Prednisone | Generic | 192 | 67 | $2,163 |
| Hydroxychloroquine Sulfate | Generic | 189 | 63 | $16,701 |
| Leflunomide | Generic | 166 | 48 | $16,996 |
| Humira(Cf) Pen (Adalimumab) | Brand | 124 | 18 | $978,318 |
| Actemra Actpen (Tocilizumab) | Brand | 81 | 0 | $321,289 |
| Enbrel Sureclick (Etanercept) | Brand | 69 | 11 | $461,532 |
| Alendronate Sodium | Generic | 64 | 18 | $1,110 |
| Orencia Clickject (Abatacept) | Brand | 59 | 0 | $336,483 |
| Actemra (Tocilizumab) | Brand | 50 | 0 | $169,582 |
Hospital affiliations
Frequently asked questions
What is Dr. De-Ann Williams's medical specialty?
Dr. De-Ann Williams practices Rheumatology Physician in Yakima, WA.
Where does Dr. De-Ann Williams practice?
Dr. De-Ann Williams practices at 1470 N 16Th Ave, Yakima, WA 98902. Office phone: 5095746000.
What is Dr. De-Ann Williams's NPI?
Dr. De-Ann Williams's National Provider Identifier (NPI) is 1699114843, issued by NPPES.
Does Dr. De-Ann Williams accept Medicare assignment?
Yes. Dr. De-Ann Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. De-Ann Williams 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); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.