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DR. MELISSA SULLIVAN M.D.
NPI 1720209802
Anesthesiology in San Francisco, CA

Active since May 02, 2007PECOS Enrolled
513 PARNASSUS AVE # 436, SAN FRANCISCO, CA 94143(415) 476-3235 Get Directions Write a Review

NPPES record last updated: December 14, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Melissa Sullivan M.d. NPPES

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

DR. MELISSA SULLIVAN M.D. (NPI 1720209802) is an individual anesthesiology provider in San Francisco, California, licensed in California (A94222) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720209802
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. MELISSA SULLIVANCredential: M.D.
Location Address513 PARNASSUS AVE # 436San Francisco, CA 94143-2205
Mailing Address513 Parnassus Ave # 436San Francisco, CA 94143-2205
Phone(415) 476-3235
Sole ProprietorNo
Enumeration DateMay 2, 2007
Last NPPES UpdateDecember 14, 2021
✔ NPI 1720209802 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A94222
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.
513 PARNASSUS AVE # 436, San Francisco, CA 94143
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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 (PECOS)

Dr. Melissa Sullivan M.d. 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 Reassignment

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

Permanente Medical Group Inc
1.7 mi
Internal Medicine
2238 GEARY
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1841373800 (415) 833-2200

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

Other Providers at the Same Location NPPES 5

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

ALEX T LEE MD
Anesthesiology
513 PARNASSUS AVE # 436
SAN FRANCISCO, CA 94143
San Francisco County (415) 412-1789
DR. JONATHAN VILLANUEVA MD
Anesthesiology
513 PARNASSUS AVE # 436
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-3781
DR. JEFFREY SUNG JOO KIM M.D.
Student in an Organized Health Care Education/Training Program
513 PARNASSUS AVE # 436, UCSF ANESTHESIA RESIDENCY PROGRAM
SAN FRANCISCO, CA 94143
San Francisco County (415) 514-3781
DR. JOAN E. HOWLEY M.D.
Anesthesiology
513 PARNASSUS AVE # 436, UCSF ANESTHESIA
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-6614
DR. CHRISTINA INGLIS-ARKELL M.D.
Anesthesiology
513 PARNASSUS AVE # 436
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-3235

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 Melissa Sullivan's NPI number?

The NPI number for Melissa Sullivan is 1720209802. It was assigned to this individual provider in the NPPES registry on May 2, 2007.

Where is Melissa Sullivan located?

Melissa Sullivan practices at 513 Parnassus Ave # 436, San Francisco, CA 94143. The listed phone number is (415) 476-3235.

What is Melissa Sullivan's specialty?

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

Is Melissa Sullivan enrolled in Medicare?

Yes. Melissa Sullivan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Melissa Sullivan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Sullivan reassigns Medicare benefits to Permanente Medical Group Inc (San Francisco, 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 Melissa Sullivan'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 Melissa Sullivan was last updated on December 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.