Catherine Okuliar
Internal Medicine Physician · Washington, DC
Catherine Okuliar is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1023094752, issued on Dec 15, 2005. Check the license (District of Columbia 35323, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Catherine Okuliar
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35323 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW, Washington, DC 20007
- Phone
- (202) 444-8168
- Enumerated
- Dec 15, 2005
- Record last updated
- Mar 14, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050810001036); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2002
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 901 in District of Columbia → Look up another NPI →
Also registered at 3800 Reservoir RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Okuliar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license 35323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
321 Medicare Part D claims for 61 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium23 claims
- Levothyroxine Sodium23 claims
- Rosuvastatin Calcium20 claims
- Amlodipine Besylate16 claims
- Estradiol11 claims
- Famotidine11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Okuliar among 901 internal medicine physician records in District of Columbia
Catherine Okuliar is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 96% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2002 · median 2008 among the 513 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
891 internal medicine physician records list a practice address in Washington
They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.
All 901 in District of Columbia → Every provider in Washington → Internal Medicine Physician nationwide →
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Common questions
What is Catherine Okuliar's NPI number?
Catherine Okuliar's National Provider Identifier (NPI) is 1023094752, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Okuliar located?
The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-8168. Providers update this record themselves, so call before visiting.
How can I verify Catherine Okuliar's license?
NPPES lists District of Columbia license number 35323, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Catherine Okuliar prescribe under Medicare Part D?
In 2024, Catherine Okuliar had 321 Medicare Part D claims for 61 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.