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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM RAMSES BISHAI M.D.
NPI 1699731372
Internal Medicine in Baltimore, MD

Active since April 22, 2006PECOS Enrolled
74.39/100
CMS Quality Rating
600 N WOLFE ST, BALTIMORE, MD 21287(410) 955-1725 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Ramses Bishai M.d. NPPES

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

WILLIAM RAMSES BISHAI M.D. (NPI 1699731372) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D41333) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (1989).

NPPES Registry Identity

NPI1699731372
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM RAMSES BISHAICredential: M.D.
Location Address600 N WOLFE STBaltimore, MD 21287-0005
Mailing AddressPo Box 64264Baltimore, MD 21264-4264
Phone(410) 955-1725
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 1989
Enumeration DateApril 22, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1699731372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D41333
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
600 N WOLFE ST, Baltimore, MD 21287
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Ramses Bishai M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2769513845
PECOS Enrollment IDI20100707000050
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21287 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PAMELA KIMZEY DONOHUE SCD, PA-C
Physician Assistant (Medical)
600 N WOLFE ST, NELSON 2-133
BALTIMORE, MD 21287
Baltimore City (410) 955-5232
MR. CHRISTOPHER DAVID SCHRIEBER M.S., PA-C
Physician Assistant
600 N WOLFE ST, MARBURG B-186
BALTIMORE, MD 21287
Baltimore City (410) 955-8708
DR. SABRINA CHRISTINE SOPHA M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-3580
SANDRA KING D.H.
Dental Hygienist
600 N WOLFE ST, BLALOCK 266
BALTIMORE, MD 21287
Baltimore City (410) 955-6662
THERESA J RUDDY C.P.N.P., CRNP
Nurse Practitioner (Acute Care)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5260
DR. SUMAN PAUL M.B.B.S, PHD
Internal Medicine (Medical Oncology)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000
MS. SARAH CATHERINE COLLICA
Psychiatry & Neurology (Psychiatry)
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (443) 287-4701
JEFF S EHRESMAN
Student in an Organized Health Care Education/Training Program
600 N WOLFE ST
BALTIMORE, MD 21287
Baltimore City (410) 955-5000

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 William Bishai's NPI number?

The NPI number for William Bishai is 1699731372. It was assigned to this individual provider in the NPPES registry on April 22, 2006.

Where is William Bishai located?

William Bishai practices at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-1725.

What is William Bishai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is William Bishai enrolled in Medicare?

Yes. William Bishai is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for William Bishai was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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.