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AREEJ KHAN M.D.
NPI 1821495326
Internal Medicine - Infectious Disease in Salisbury, MD

Active since November 26, 2014PECOS EnrolledAccepts Medicare Assignment
100 E CARROLL ST, SALISBURY, MD 21801(410) 546-6400 Get Directions Write a Review

NPPES record last updated: January 26, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 26, 2022, Jan 13, 2022, Mar 2, 2017 (3 updates tracked since 2017).

About Areej Khan M.d. NPPES

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

AREEJ KHAN M.D. (NPI 1821495326) is an individual infectious disease provider in Salisbury, Maryland, licensed in Maryland (D88710) and active in the NPI registry since November 2014. She is enrolled in Medicare PECOS, is affiliated with Tidalhealth Peninsula Regional, Inc, and maintains a secondary practice location in Delmar.

NPPES Registry Identity

NPI1821495326
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameAREEJ KHANCredential: M.D.
Location Address100 E CARROLL STSalisbury, MD 21801-5422
Mailing Address100 E Carroll StSalisbury, MD 21801-5422 · (410) 546-6400
Phone(410) 546-6400
Sole ProprietorYes
Medical School CMSOtherGraduated 2011
Enumeration DateNovember 26, 2014
Last NPPES UpdateJanuary 26, 20223 updates tracked since enumeration
NPPES CertifiedJanuary 26, 2022
✔ NPI 1821495326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in MD · D88710✔ Licensed in DE · C1-0011928
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
100 E CARROLL ST, Salisbury, MD 21801
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Secondary Practice Location 1

Location 138552 Sussex Hwy # 101Delmar, DE 19940-3596 · Phone (302) 990-3322

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Areej Khan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416230560
PECOS Enrollment IDI20170215001320, I20240111000244
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

2

Medicare enrollment records show Areej Khan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tidalhealth Specialty Care, LLC
0.1 mi
Medical Specialty
100 E CARROLL ST
Salisbury, MD 21801
  • Reassigned Medicare billing, Maryland enrollment
  • 531 clinicians in this Medicare group
NPI 1619504735 (410) 546-6400
Tidalhealth Physician Network, Inc.
19 mi
Family Medicine
801 MIDDLEFORD RD
Seaford, DE 19973
  • Reassigned Medicare billing, Delaware enrollment
  • 179 clinicians in this Medicare group
NPI 1467534636 (302) 629-5217

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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
270 services152 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
174 services160 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.
128 services81 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
112 services104 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.
60 services40 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
32 services32 patients

Hospital Affiliations CMS Care Compare

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

Tidalhealth Peninsula Regional, Inc

Acute Care Hospitals · Salisbury, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210019
Location100 East Carroll AvenueSalisbury, MD 21801 · Wicomico County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21801 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
$133.05 typical visit price
range $57.99 – $175.57
Typical copayment $33.26 (range $14.49 – $43.89)
Most-billed visit code 99204
Established Patient
$102.11 typical visit price
range $18.66 – $143.02
Typical copayment $25.52 (range $4.66 – $35.75)
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.

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.

DR. DANIEL DEMETRIOS COLLECTOR MD
Student in an Organized Health Care Education/Training Program
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 546-6400
TIDALHEALTH SPECIALTY CARE
Pediatrics (Neonatal-Perinatal Medicine)
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 543-7749
ALEX L MAH MD
Anesthesiology
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 543-7375
MICHELLE H GRBIC MS CCC-SLP
Speech-Language Pathologist
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 546-6400
DR. SAVANNAH FINLEY DO
Student in an Organized Health Care Education/Training Program
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 546-6400
BRENDA MARTIN CRNP
Nurse Practitioner
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 543-7531
CHARLES B SILVIA JR. MD
Internal Medicine
100 E CARROLL ST, INPATIENT SERVICES
SALISBURY, MD 21801
Wicomico County (410) 543-7536
WILLIAM C TODD MD
Emergency Medicine
100 E CARROLL ST
SALISBURY, MD 21801
Wicomico County (410) 543-7100

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 Areej Khan's NPI number?

The NPI number for Areej Khan is 1821495326. It was assigned to this individual provider in the NPPES registry on November 26, 2014.

Where is Areej Khan located?

Areej Khan practices at 100 E Carroll St, Salisbury, MD 21801. The listed phone number is (410) 546-6400.

What is Areej Khan's specialty?

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

Is Areej Khan enrolled in Medicare?

Yes. Areej Khan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Areej Khan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Areej Khan reassigns Medicare benefits to 2 organizations: Tidalhealth Specialty Care, LLC (Salisbury, MD) and Tidalhealth Physician Network, Inc. (Seaford, DE). 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 Areej Khan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Areej Khan accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and AmeriHealth Caritas Next and 1 other insurer list Areej Khan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Areej Khan affiliated with any hospitals?

According to CMS data, Areej Khan is affiliated with Tidalhealth Peninsula Regional, Inc.

When was this NPI record last updated?

The NPPES record for Areej Khan was last updated on January 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.