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Edit this profileAt a glance
- 3800 Reservoir Rd Nw, Washington, DC 20007
About Jacqueline Jonklaas
Jacqueline Jonklaas is a healthcare provider in Washington, DC specializing in endocrinology, diabetes & metabolism. Jacqueline trained at Georgetown University School of Medicine, graduating in 1993. According to Medicare claims data, Jacqueline cared for 127 Medicare patients across 221 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. This provider record is associated with NPI 1285633636.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (202) 444-2818
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
3800 RESERVOIR RD NW
Washington, DC 20007
Conditions Commonly Evaluated or Treated
Within Endocrinology, Diabetes and Metabolism generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Adrenal disorders
Blood sugar disorders
Bone and calcium disorders
Bones
Pituitary
Pituitary disorders
Thyroid
Thyroid disorders
Most searched conditions
Adrenal
Diabetes
Endocrine tumors
Hormone disorders
- Early or delayed puberty
- Excess facial or body hair
- Gynecomastia
- Perimenopause
- Testosterone deficiency
Hormones
Metabolic disorders
Metabolism
Parathyroid
Procedures & services
Adrenal
Adrenal evaluations
Blood sugar management
Bone evaluations
Bone treatments
Diabetes
- Automated Insulin System Setup
- Blood Ketone Monitoring
- C-Peptide Test
- Continuous Glucose Monitor Data Review
- Starting Insulin Therapy
- Medical nutrition therapy
Diabetes education
Genetic evaluations
Hormone treatments
- Growth Hormone Injections
- Hormone Replacement Therapy Consultation
- Estrogen and Progesterone Therapy
Hormones
Metabolic evaluations
Metabolism
Parathyroid
Pituitary
Pituitary evaluations
Routine Blood Tests
Thyroid
Thyroid procedures
- Thyroid Antibody Testing
- Thyroid Medication Adjustment
- Radioactive Iodine Treatment
- Thyroid Blood Test
- Thyroid Nodule Biopsy
- Thyroid Nodule Radiofrequency Ablation
Weight & Metabolism
Women's health
Most searched procedures
Diabetes preventive care
Procedures Most Often Billed to Medicare
221 services · 127 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
117 | More often than most peers in Endocrinology, Diabetes &… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
75 | Less often than most peers in Endocrinology, Diabetes &… |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
29 | As often as other peers in Endocrinology, Diabetes &… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other endocrinologists in Washington 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Jacqueline Jonklaas specialize in?
Jacqueline Jonklaas is an endocrinologist in Washington, DC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Endocrinology, Diabetes & Metabolism”.
NPI registry
Where is Jacqueline Jonklaas located?
Jacqueline Jonklaas is listed at 3800 Reservoir Rd Nw, Washington, DC 20007. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Jacqueline Jonklaas's phone number?
The number on file is (202) 444-2818. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Jacqueline Jonklaas's NPI number?
Jacqueline Jonklaas's National Provider Identifier is 1285633636. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Jacqueline Jonklaas train?
Jacqueline Jonklaas attended Georgetown University School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Jacqueline Jonklaas been practicing?
Jacqueline Jonklaas has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What does Jacqueline Jonklaas do most often?
According to Medicare billing data, Jacqueline Jonklaas the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Jacqueline Jonklaas confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Jacqueline Jonklaas. If this is you, claiming it is free.
Guide.md
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