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DR. JAMES HENRI CLARK MB, BCH, BAO
NPI 1639478431
Otolaryngology in Baltimore, MD

Active since March 18, 2011PECOS Enrolled
601 N. CAROLINE STREET, JOHNS HOPKINS OUTPATIENT CENTER, 6TH FLOOR, BALTIMORE, MD 21287(410) 955-1079 Get Directions Write a Review

NPPES record last updated: January 31, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 30, 2023, Apr 26, 2018, Oct 31, 2017 (3 updates tracked since 2017).

About Dr. James Henri Clark Mb, Bch, Bao NPPES

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

DR. JAMES HENRI CLARK MB, BCH, BAO (NPI 1639478431) is an individual otolaryngology provider in Baltimore, Maryland, licensed in Maryland (D84508) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1639478431
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. JAMES HENRI CLARKCredential: MB, BCH, BAO
Location Address601 N. CAROLINE STREET, JOHNS HOPKINS OUTPATIENT CENTER, 6TH FLOORBaltimore, MD 21287-0006
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-6423 · Fax (410) 500-4266
Phone(410) 955-1079
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateMarch 18, 2011
Last NPPES UpdateJanuary 31, 20243 updates tracked since enumeration
NPPES CertifiedJanuary 31, 2024
✔ NPI 1639478431 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in MD · D84508
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
601 N. CAROLINE STREET, JOHNS HOPKINS OUTPATIENT CENTER, Baltimore, MD 21287
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Other Identifiers 1

Other641762ZAK8MD · Medciare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James Henri Clark Mb, Bch, Bao is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4981855244
PECOS Enrollment IDI20180410000818, I20220202001618
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.

Medicare Billing Reassignments

3

Medicare enrollment records show James Clark reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Johns Hopkins University
0.9 mi
Urology
601 N CAROLINE ST
Baltimore, MD 21287
  • Reassigned Medicare billing, Maryland enrollment
  • 4,483 clinicians in this Medicare group
NPI 1295731966 (410) 955-5000
Johns Hopkins University
0.9 mi
Audiologist
600 N WOLFE ST
Baltimore, MD 21287
  • Reassigned Medicare billing, District of Columbia enrollment
  • 43 clinicians in this Medicare group
NPI 1992951131 (410) 955-6153
Greater Baltimore Medical Center, Inc.
7.4 mi
Surgery
6565 N CHARLES ST STE 501
Baltimore, MD 21204
  • Reassigned Medicare billing, Maryland enrollment
  • 444 clinicians in this Medicare group
NPI 1013739382 (443) 849-4800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
148 services84 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
105 services76 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
67 services44 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
61 services51 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
56 services56 patients
Exam to assess movement of vocal cord flaps using an endoscope 31579
This procedure involves using a thin, flexible tube called an endoscope to view your vocal cords. The endoscope is gently inserted through your nose or mouth to observe the movement of your vocal cords. This helps identify any abnormalities or issues.
52 services38 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210009
Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County
Emergency services Birthing friendly

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Greater Baltimore Medical Center

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210044
Location6701 North Charles StreetBaltimore, MD 21204 · Baltimore County
Emergency services Birthing friendly

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
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
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 James Clark's NPI number?

The NPI number for James Clark is 1639478431. It was assigned to this individual provider in the NPPES registry on March 18, 2011.

Where is James Clark located?

James Clark practices at 601 N. Caroline Street, Johns Hopkins Outpatient Center 6th Floor, Baltimore, MD 21287. The listed phone number is (410) 955-1079.

What is James Clark's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is James Clark enrolled in Medicare?

Yes. James Clark is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Clark reassigns Medicare benefits to 3 organizations: Johns Hopkins University (Baltimore, MD), Johns Hopkins University (Baltimore, MD) and Greater Baltimore Medical Center, Inc. (Baltimore, MD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is James Clark affiliated with any hospitals?

According to CMS data, James Clark is affiliated with Johns Hopkins Hospital, The, Johns Hopkins Bayview Medical Center and Greater Baltimore Medical Center.

When was this NPI record last updated?

The NPPES record for James Clark was last updated on January 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.