DR. MARTHA CAROLINA LOPEZ SILES MD
NPI 1548847965
Internal Medicine in Newark, DE

Q: What is Martha Lopez Siles's NPI number?

The NPI number for Martha Lopez Siles is 1548847965. It was assigned to this individual provider in the NPPES registry on March 24, 2021.

Q: What is Martha Lopez Siles's specialty?

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

Active since March 24, 2021PECOS Enrolled

4755 OGLETOWN STANTON RD STE 5A43, NEWARK, DE 19718(302) 623-0188(302) 733-5640 Get Directions Write a Review

NPPES record last updated: July 1, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 1, 2024, Mar 24, 2021 (2 updates tracked since 2021).

On this page

About Dr. Martha Carolina Lopez Siles Md NPPES

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

DR. MARTHA CAROLINA LOPEZ SILES MD (NPI 1548847965) is an individual internal medicine provider in Newark, Delaware, licensed in Delaware (C1-0027064) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1548847965

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. MARTHA CAROLINA LOPEZ SILESCredential: MD

Location Address4755 OGLETOWN STANTON RD STE 5A43Newark, DE 19718-2200

Mailing Address4755 Ogletown Stanton Rd Ste 5a43Newark, DE 19718-2200 · (302) 623-0188 · Fax (302) 733-5640

Phone(302) 623-0188

Fax(302) 733-5640

Sole ProprietorNo

Enumeration DateMarch 24, 2021

Last NPPES UpdateJuly 1, 20242 updates tracked since enumeration

NPPES CertifiedJuly 1, 2024

✔ NPI 1548847965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in DE · C1-0027064

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.

4755 OGLETOWN STANTON RD STE 5A43, Newark, DE 19718

Open in Google Maps ↗

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 (PECOS)

Dr. Martha Carolina Lopez Siles Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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

Christiana Care Health Services Inc

0.5 mi

Hospitalist

200 HYGEIA DR, SUITE 2100
Newark, DE 19713

Reassigned Medicare billing, Delaware enrollment
Also billed through NPI 1760811681 (Delaware)
460 clinicians in this Medicare group

NPI 1245474329 (302) 623-0188

Union Hospital Of Cecil County, Inc.

10 mi

Urology

137 W HIGH ST STE 2B
Elkton, MD 21921

Reassigned Medicare billing, Maryland enrollment
512 clinicians in this Medicare group

NPI 1407607450 (410) 398-0451

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.

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.

56 services32 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

41 services26 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

22 services22 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.

14 services14 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19718 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

$131.15 typical visit price

range $57.12 – $173.08

Typical copayment $32.78 (range $14.28 – $43.27)

Most-billed visit code 99204

Established Patient

$100.68 typical visit price

range $18.36 – $141.05

Typical copayment $25.17 (range $4.59 – $35.26)

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.

SHRUTI PURI MD

Internal Medicine (Infectious Disease)