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DR. MERCEDES RITA TERRELL MD
NPI 1578748653
Internal Medicine in Baltimore, MD

Active since January 08, 2008PECOS EnrolledAccepts Medicare Assignment
4920 CAMPBELL BLVD, BALTIMORE, MD 21236(443) 442-2300 Get Directions Write a Review

NPPES record last updated: May 9, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mercedes Rita Terrell Md NPPES

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

DR. MERCEDES RITA TERRELL MD (NPI 1578748653) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D69591) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (2006).

NPPES Registry Identity

NPI1578748653
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MERCEDES RITA TERRELLCredential: MD
Location Address4920 CAMPBELL BLVDBaltimore, MD 21236-5916
Mailing Address3100 Wyman Park DrBaltimore, MD 21211-2803
Phone(443) 442-2300
Sole ProprietorYes
Medical School CMSGeorge Washington University School Of MedicineGraduated 2006
Enumeration DateJanuary 8, 2008
Last NPPES UpdateMay 9, 2013
✔ NPI 1578748653 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 · D69591
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.
4920 CAMPBELL BLVD, Baltimore, MD 21236
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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

Dr. Mercedes Rita Terrell Md 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 ID7416096516
PECOS Enrollment IDI20240703000594
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 Reassignment

Medicare enrollment records show Mercedes Terrell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2,400 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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 5

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.

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.
160 services137 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
151 services129 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.
48 services41 patients
Catheterization for collection of specimen(s) (multiple patients) P9615
Catheterization for specimen collection is a procedure where a thin, flexible tube is gently inserted into a body passage to collect fluid samples. This helps in diagnosing various health conditions. It's a standard, safe procedure performed by trained professionals.
26 services24 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21236 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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
12 suppliers51 claims140 services$5.12 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
5 suppliers19 claims27 services$1.12 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers26 claims28 services$104.72 avg. paid by Medicare
Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613
DME-Drugs Administered Through DME · category DG006N
3 suppliers11 claims4,195 services$0.03 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
5 suppliers46 claims46 services$185.07 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC
Health Maintenance Organization
4920 CAMPBELL BLVD, KAISER PERMANENTE
BALTIMORE, MD 21236
Baltimore County (410) 933-7728
DR. CHRISTINE H SOHN WOO M.D.
Obstetrics & Gynecology
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (800) 777-7904
DR. MARCEA BURNETTE WHITAKER M.D.
Internal Medicine
4920 CAMPBELL BLVD, KAISER PERMANENTE WHITE MARSH MEDICAL CENTER
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7600
SONGE BAEK PHARMD
Pharmacist
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7626
MARTHA M GEORGES
Pharmacist
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7626
ALYSSA MARY MATHEW D.O
Internal Medicine
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7600
DR. OLUWAKEMI AJIDE M.D.
Family Medicine
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7600
CHRISTINA MARGARET BROWN MD
Pediatrics
4920 CAMPBELL BLVD
NOTTINGHAM, MD 21236
Baltimore County (410) 933-7600

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 Mercedes Terrell's NPI number?

The NPI number for Mercedes Terrell is 1578748653. It was assigned to this individual provider in the NPPES registry on January 8, 2008.

Where is Mercedes Terrell located?

Mercedes Terrell practices at 4920 Campbell Blvd, Baltimore, MD 21236. The listed phone number is (443) 442-2300.

What is Mercedes Terrell's specialty?

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

Is Mercedes Terrell enrolled in Medicare?

Yes. Mercedes Terrell 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 organization bills Medicare for Mercedes Terrell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mercedes Terrell reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). The 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 Mercedes Terrell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mercedes Terrell was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.