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DR. MARIA M RAMOS PEREZ MD
NPI 1598801177
Anesthesiology in Denver, CO

Active since January 30, 2007PECOS EnrolledAccepts Medicare Assignment
8155 E 1ST AVE, DENVER, CO 80230(303) 422-9438 Get Directions Write a Review

NPPES record last updated: March 1, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Maria M Ramos Perez Md NPPES

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

DR. MARIA M RAMOS PEREZ MD (NPI 1598801177) is an individual anesthesiology provider in Denver, Colorado, licensed in New York (263524-1) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Peacehealth Southwest Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1598801177
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. MARIA M RAMOS PEREZCredential: MD
Location Address8155 E 1ST AVEDenver, CO 80230-7163
Mailing AddressPo Box 668Arvada, CO 80001-0668 · (303) 422-9438 · Fax (303) 422-9474
Phone(303) 422-9438
Sole ProprietorNo
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2006
Enumeration DateJanuary 30, 2007
Last NPPES UpdateMarch 1, 2023
NPPES CertifiedMarch 1, 2023
✔ NPI 1598801177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in NY · 263524-1✔ Licensed in CO · DR.0064784
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 263524 (NY)
8155 E 1ST AVE, Denver, CO 80230
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Other Names 1

Former Name (1)Maria M Ramos

Secondary Practice Locations 2

Location 1310 E 14th St, New York Eye & Ear InfirmaryNew York, NY 10003 · Phone (212) 979-4000 · Fax (845) 790-2613
Location 210350 E Dakota AveDenver, CO 80247-1314 · Phone (303) 338-4545

Other Identifiers 1

Medicaid9000202857CO

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. Maria M Ramos Perez 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 ID8729103668
PECOS Enrollment IDI20230828003932
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

4

Medicare enrollment records show Maria Ramos Perez reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Anesthesia Medical Group Of Santa Cruz, Inc.
946 mi
Anesthesiology
1555 SOQUEL DR
Santa Cruz, CA 95065
  • Reassigned Medicare billing, California enrollment
  • 45 clinicians in this Medicare group
NPI 1871541144 (831) 462-7700
Columbia Anesthesia Group P S
986 mi
Anesthesiology
400 NE MOTHER JOSEPH PL
Vancouver, WA 98664
  • Reassigned Medicare billing, Washington enrollment
  • 155 clinicians in this Medicare group
NPI 1861448235 (360) 828-5396
Oregon Anesthesiology Group PC
988 mi
Anesthesiology
707 SW WASHINGTON ST, SUITE 700
Portland, OR 97205
  • Reassigned Medicare billing, Washington enrollment
  • 180 clinicians in this Medicare group
NPI 1477527786 (503) 299-9906
Salem Health
991 mi
Family Medicine
105 ARNEY RD STE 120
Woodburn, OR 97071
  • Reassigned Medicare billing, Oregon enrollment
  • 625 clinicians in this Medicare group
NPI 1578112066 (503) 184-4400

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

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Peacehealth Southwest Medical Center

Acute Care Hospitals · Vancouver, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500050
Location400 NE Mother Joseph PlaceVancouver, WA 98668 · Clark County
Emergency services Birthing friendly

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.

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)
Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…
95%59 patients4/55-star benchmark: 100%
Pre-operative OSA assessment
Percentage of patients who undergo a surgical procedure in the operating room/procedure room that have a pre-operative assessment for Obstructive Sleep Apnea (OSA)
47%569 patients2/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DENVER SURGICENTER, LLC
Clinic/Center (Ambulatory Surgical)
8155 E 1ST AVE
DENVER, CO 80230
Denver County (303) 344-4844

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 Maria Ramos Perez's NPI number?

The NPI number for Maria Ramos Perez is 1598801177. It was assigned to this individual provider in the NPPES registry on January 30, 2007. The provider is also known as Maria M Ramos.

Where is Maria Ramos Perez located?

Maria Ramos Perez practices at 8155 E 1st Ave, Denver, CO 80230. The listed phone number is (303) 422-9438.

What is Maria Ramos Perez's specialty?

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

Is Maria Ramos Perez enrolled in Medicare?

Yes. Maria Ramos Perez 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 Maria Ramos Perez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maria Ramos Perez reassigns Medicare benefits to 4 organizations: Anesthesia Medical Group Of Santa Cruz, Inc. (Santa Cruz, CA), Columbia Anesthesia Group P S (Vancouver, WA), Oregon Anesthesiology Group PC (Portland, OR) and Salem Health (Woodburn, OR). 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 Maria Ramos Perez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Maria Ramos Perez affiliated with any hospitals?

According to CMS data, Maria Ramos Perez is affiliated with Peacehealth Southwest Medical Center.

When was this NPI record last updated?

The NPPES record for Maria Ramos Perez was last updated on March 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.