Doctor profile · Federal record
Dr. Jacqueline Jonklaas
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Washington, DC
- NPI 1285633636
- Accepts Medicare
- MIPS 76.3 / 100 · 2023
- 33 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3800 Reservoir RD Nw
Washington, DC 200072113
(202) 444-2818 - Mailing address
-
Po Box 418283
Boston, MA 022418283
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- March 8, 2012
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- District of Columbia #30495
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285633636. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
115
Distinct HCPCS
3
Medicare allowed
$16,182
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 73 | 66 | $143 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 30 | 13 | $118 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 12 | $182 |
In context: peer comparison
Among 15 peers in Washington Endocrinology, Diabetes & Metabolism Physician, average services per provider: 98. This provider delivers 1.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
226
Patients
48
Total drug cost
$11,053
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 122 | 32 | $2,210 |
| Synthroid (Levothyroxine Sodium) | Brand | 52 | 16 | $6,302 |
| Hydrocortisone | Generic | 24 | 0 | $175 |
| Tirosint (Levothyroxine Sodium) | Brand | 15 | 0 | $2,198 |
| Metformin Hcl | Generic | 13 | 0 | $168 |
Hospital affiliations
Frequently asked questions
What is Dr. Jacqueline Jonklaas's medical specialty?
Dr. Jacqueline Jonklaas practices Endocrinology, Diabetes & Metabolism Physician in Washington, DC.
Where does Dr. Jacqueline Jonklaas practice?
Dr. Jacqueline Jonklaas practices at 3800 Reservoir RD Nw, Washington, DC 200072113. Office phone: 2024442818.
What is Dr. Jacqueline Jonklaas's NPI?
Dr. Jacqueline Jonklaas's National Provider Identifier (NPI) is 1285633636, issued by NPPES.
Does Dr. Jacqueline Jonklaas accept Medicare assignment?
Yes. Dr. Jacqueline Jonklaas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jacqueline Jonklaas commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.