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DR. JOSEPH G JEMSEK MD
NPI 1821075615
Internal Medicine - Infectious Disease in Washington, DC

Active since December 22, 2005Opted out of Medicare · through Jan 27, 2027
2000 PENNSYLVANIA AVE NW STE 4000, WASHINGTON, DC 20006(202) 955-0003(866) 457-0397 Get Directions Write a Review

NPPES record last updated: November 8, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Joseph G Jemsek Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOSEPH G JEMSEK MD (NPI 1821075615) is an individual infectious disease provider in Washington, District Of Columbia, licensed in District Of Columbia (MD038331) and active in the NPI registry since December 2005. He has opted out of Medicare through January 27, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1821075615
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. JOSEPH G JEMSEKCredential: MD
Location Address2000 PENNSYLVANIA AVE NW STE 4000Washington, DC 20006-1834
Mailing Address2000 Pennsylvania Ave Nw Ste 4000Washington, DC 20006-1834 · (202) 955-0003 · Fax (866) 457-0397
Phone(202) 955-0003
Fax(866) 457-0397
Sole ProprietorNo
Enumeration DateDecember 22, 2005
Last NPPES UpdateNovember 8, 2022
NPPES CertifiedNovember 8, 2022
✔ NPI 1821075615 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in DC · MD038331✔ Licensed in SC · 7584
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
2000 PENNSYLVANIA AVE NW STE 4000, Washington, DC 20006
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Joseph G Jemsek Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 27, 2015 through January 27, 2027.

Opt-Out Effective DateJanuary 27, 2015
Opt-Out In Effect ThroughJanuary 27, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20006 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Jemsek's NPI number?

The NPI number for Joseph Jemsek is 1821075615. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Where is Joseph Jemsek located?

Joseph Jemsek practices at 2000 Pennsylvania Ave NW Ste 4000, Washington, DC 20006. The listed phone number is (202) 955-0003.

What is Joseph Jemsek's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Joseph Jemsek enrolled in Medicare?

No. Joseph Jemsek has opted out of Medicare through January 27, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Joseph Jemsek was last updated on November 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.