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DR. ANASTASIA GRIVOYANNIS M.D.
NPI 1295027837
Anesthesiology in Baltimore, MD

Active since May 13, 2011PECOS EnrolledAccepts Medicare Assignment
74.39/100
CMS Quality Rating
1800 ORLEANS ST STE 6321, BALTIMORE, MD 21287(410) 955-7601 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 26, 2026, Oct 26, 2023, Dec 17, 2022 and 2 more (5 updates tracked since 2018).

About Dr. Anastasia Grivoyannis M.d. NPPES

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

DR. ANASTASIA GRIVOYANNIS M.D. (NPI 1295027837) is an individual anesthesiology provider in Baltimore, Maryland, licensed in District Of Columbia (MD210002700) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1295027837
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. ANASTASIA GRIVOYANNISCredential: M.D.
Location Address1800 ORLEANS ST STE 6321Baltimore, MD 21287-0010
Mailing Address111 Michigan Ave Nw Ste M2601Washington, DC 20010-2916 · (202) 476-2056 · Fax (202) 851-5035
Phone(410) 955-7601
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMay 13, 2011
Last NPPES UpdateMay 26, 20265 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1295027837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in DC · MD210002700✔ Licensed in MD · D84903✔ Licensed in VA · 0101276572
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.
Also ListedAnesthesiology · Pediatric AnesthesiologyTaxonomy 207LP3000X · License MD210002700 (DC), D84903 (MD), 0101276572 (VA)
1800 ORLEANS ST STE 6321, Baltimore, MD 21287
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Secondary Practice Locations 4

Location 1111 Michigan Ave NW Ste M2601Washington, DC 20010-2916 · Phone (202) 476-2056 · Fax (202) 851-5035
Location 2700 2nd St NEWashington, DC 20002-8100 · Phone (202) 346-3000
Location 31221 Mercantile LnLargo, MD 20774-5374 · Phone (301) 618-5500
Location 43023 Hamaker Ct Ste 400Fairfax, VA 22031-2247 · Phone (703) 848-6637 · Fax (571) 776-3191

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

Dr. Anastasia Grivoyannis 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 ID3779858451
PECOS Enrollment IDI20181101000411, I20221206002780
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 Anastasia Grivoyannis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc
5.1 mi
Ambulatory Surgical
1701 TWIN SPRINGS RD
Halethorpe, MD 21227
NPI 1942546486 (301) 816-2424
Pediatric Specialists Of Virginia, LLC
46 mi
Pediatrics
3023 HAMAKER CT, SUITE 200
Fairfax, VA 22031
  • Reassigned Medicare billing, District of Columbia enrollment
  • 128 clinicians in this Medicare group
NPI 1699119818 (703) 848-6627

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

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 Anastasia Grivoyannis's NPI number?

The NPI number for Anastasia Grivoyannis is 1295027837. It was assigned to this individual provider in the NPPES registry on May 13, 2011.

Where is Anastasia Grivoyannis located?

Anastasia Grivoyannis practices at 1800 Orleans St Ste 6321, Baltimore, MD 21287. The listed phone number is (410) 955-7601.

What is Anastasia Grivoyannis's specialty?

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

Is Anastasia Grivoyannis enrolled in Medicare?

Yes. Anastasia Grivoyannis 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 Anastasia Grivoyannis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anastasia Grivoyannis reassigns Medicare benefits to 2 organizations: Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Halethorpe, MD) and Pediatric Specialists Of Virginia, LLC (Fairfax, VA). 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 Anastasia Grivoyannis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Anastasia Grivoyannis accept?

Health plans from Oscar Health list Anastasia Grivoyannis 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.

When was this NPI record last updated?

The NPPES record for Anastasia Grivoyannis was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.