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LORENZO DE MARCHI MD
NPI 1649472473
Anesthesiology in Washington, DC

Active since June 04, 2007PECOS EnrolledAccepts Medicare Assignment
3800 RESERVOIR RD NW, S-CCC, WASHINGTON, DC 20007(202) 444-8640(202) 444-8854 Get Directions Write a Review

NPPES record last updated: March 12, 2008. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Lorenzo De Marchi Md NPPES

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

LORENZO DE MARCHI MD (NPI 1649472473) is an individual anesthesiology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD036574) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Medstar Harbor Hospital, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1649472473
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameLORENZO DE MARCHICredential: MD
Location Address3800 RESERVOIR RD NW, S-CCCWashington, DC 20007-2113
Mailing Address9801 Culver StKensington, MD 20895-3658 · (301) 942-6420
Phone(202) 444-8640
Fax(202) 444-8854
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateJune 4, 2007
Last NPPES UpdateMarch 12, 2008
✔ NPI 1649472473 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in DC · MD036574
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
3800 RESERVOIR RD NW, Washington, DC 20007
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Other Identifiers 1

Medicare PIN022117M65DC

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

Lorenzo De Marchi 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 ID8022101666
PECOS Enrollment IDI20070912000450, I20230504000228
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 Lorenzo De Marchi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medstar Medical Group II LLC
Same address
Critical Care Medicine
3800 RESERVOIR RD NW
Washington, DC 20007
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • Also billed through NPI 1376887844 (Maryland)
  • 3,530 clinicians in this Medicare group
NPI 1205562816 (703) 558-1403
Medstar Medical Group Anesthesiology LLC
3.4 mi
Anesthesiology
110 IRVING ST NW
Washington, DC 20010
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • Also billed through NPI 1528578333 (Maryland)
  • 482 clinicians in this Medicare group
NPI 1558976175 (703) 558-1403

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.

Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
55 services55 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
25 services25 patients
Anesthesia for extensive surgery on spine 00670
Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.
23 services23 patients
Anesthesia for other procedure on upper abdomen 00790
Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.
19 services19 patients
Anesthesia for kidney transplant 00868
Anesthesia for kidney transplant involves administering drugs to ensure you don't feel pain during surgery. It can be general anesthesia, making you unconscious, or regional, numbing only a certain area. It's safe, monitored by experts, and helps make the procedure comfortable.
16 services16 patients

Hospital Affiliations CMS Care Compare

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

Medstar Harbor Hospital

Acute Care Hospitals · Baltimore, MD
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210034
Location3001 South Hanover StreetBaltimore, MD 21225 · Baltimore City County
Birthing friendly

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. KAUSTUBH SUBHASH YADWADKAR M.D.
Radiology (Diagnostic Radiology)
3800 RESERVOIR RD NW, CG201
WASHINGTON, DC 20007
District of Columbia (304) 206-7595
FRED MO MD
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-8766
SEBLE YIRGA
Nurse Practitioner (Family)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-7265
ARLETTE THOMPSON-PILE
Physical Therapy Assistant
3800 RESERVOIR RD NW, PHYSICAL MEDICINE AND REHBAILITATION DEPARTMENT
WASHINGTON, DC 20007
District of Columbia (202) 444-3689
JENNA ELIZABETH HOROWITZ
Physician Assistant (Surgical)
3800 RESERVOIR RD NW, NEUROSURGERY DEPARTMENT
WASHINGTON, DC 20007
District of Columbia (202) 444-2000
HALEY SWANSON FOSTER M.D.
Radiology (Vascular & Interventional Radiology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-5022
CLAIRE DALBY MD
Student in an Organized Health Care Education/Training Program
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (202) 444-7106
MS. AMANDA JORDAN SUN PA-C
Physician Assistant
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
District of Columbia (877) 772-6505

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 Lorenzo De Marchi's NPI number?

The NPI number for Lorenzo De Marchi is 1649472473. It was assigned to this individual provider in the NPPES registry on June 4, 2007.

Where is Lorenzo De Marchi located?

Lorenzo De Marchi practices at 3800 Reservoir Rd NW S-Ccc, Washington, DC 20007. The listed phone number is (202) 444-8640.

What is Lorenzo De Marchi's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Lorenzo De Marchi enrolled in Medicare?

Yes. Lorenzo De Marchi 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 Lorenzo De Marchi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lorenzo De Marchi reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Washington, DC) and Medstar Medical Group Anesthesiology LLC (Washington, DC). 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 Lorenzo De Marchi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lorenzo De Marchi affiliated with any hospitals?

According to CMS data, Lorenzo De Marchi is affiliated with Medstar Harbor Hospital.

When was this NPI record last updated?

The NPPES record for Lorenzo De Marchi was last updated on March 12, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.