Joseph P. Casazza, MD
Infectious Disease Physician · Washington, DC
Joseph P. Casazza, MD is an infectious disease physician with a practice address in Washington, District of Columbia, and NPI 1275641334, issued on Aug 29, 2006. Check the license (District of Columbia CS0312938, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Joseph P. Casazza
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- CS0312938 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1701 14TH St NW, Washington, DC 20009
- Phone
- (202) 745-7000
- Enumerated
- Aug 29, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (202) 745-0238
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 110 in District of Columbia → Look up another NPI →
Also registered at 1701 14TH St NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph P. Casazza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license CS0312938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average infectious disease physician in 2024
584 Medicare Part D claims for 25 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Atorvastatin Calcium52 claims
- Odefsey30 claims
- Biktarvy27 claims
- Hydrochlorothiazide27 claims
- Lisinopril22 claims
- Ritonavir22 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.
Joseph P. Casazza among 110 infectious disease physician records in District of Columbia
Joseph P. Casazza, MD is one of 110 infectious disease physician records with a practice address in District of Columbia. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 49% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2007 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X 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).
Infectious Disease Physician providers in District of Columbia
There are 110 infectious disease physician records in District of Columbia.
All 110 in District of Columbia → Every provider in Washington → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Sarah Ali, MDWashington, DC 200091083848766
- Philippe Chiliade, MDWashington, DC 200091104539568
- Mary Fanning, MDWashington, DC 200091982712972
- Deborah Goldstein, MDWashington, DC 200091457502460
- Sarah Henn, M.D.,MPHWashington, DC 200091194743609
- Andrea Hulse, MDWashington, DC 200091205930427
- Jeffrey Murray, MDWashington, DC 200091730297714
- Krishna Dass, M.DWashington, DC 200101598739724
Common questions
What is Joseph P. Casazza, MD's NPI number?
Joseph P. Casazza, MD's National Provider Identifier (NPI) is 1275641334, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph P. Casazza, MD located?
The NPPES record lists a practice address at 1701 14TH St NW, Washington, DC, 20009. Phone: (202) 745-7000. Providers update this record themselves, so call before visiting.
How can I verify Joseph P. Casazza, MD's license?
NPPES lists District of Columbia license number CS0312938, 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 Joseph P. Casazza, MD prescribe under Medicare Part D?
In 2024, Joseph P. Casazza, MD had 584 Medicare Part D claims for 25 beneficiaries; the average among infectious disease physician prescribers was 689. 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.