MATTHEW RYAN MCCULLOCH M.D.
NPI 1326401019
Allergy & Immunology in San Francisco, CA

Active since March 31, 2016PECOS Enrolled
74.46/100
CMS Quality Rating
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-2725 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 7, 2026, Apr 2, 2026, Apr 18, 2020 and 1 more (4 updates tracked since 2016).

About Matthew Ryan Mcculloch M.d. NPPES

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

MATTHEW RYAN MCCULLOCH M.D. (NPI 1326401019) is an individual allergy & immunology provider in San Francisco, California, licensed in California (A179031) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1326401019
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameMATTHEW RYAN MCCULLOCHCredential: M.D.
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing AddressPo Box 110429Aurora, CO 80042-0429
Sole ProprietorNo
Enumeration DateMarch 31, 2016
Last NPPES UpdateApril 7, 20264 updates tracked since enumeration
NPPES CertifiedApril 7, 2026
NPI 1326401019 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License Licensed in CA · A179031
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedPediatrics · Pediatric Allergy/ImmunologyTaxonomy 2080P0201X · License DR.0063979 (CO)
400 PARNASSUS AVE, San Francisco, CA 94143

Secondary Practice Locations 2

Location 12301 Erwin RdDurham, NC 27705-4699 · Phone (919) 684-8111
Location 213123 E 16th AveAurora, CO 80045-7106 · Phone (720) 777-2195

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Matthew Ryan Mcculloch 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 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.

74.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability76
Improvement Activities40
Cost46.68

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.

Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143

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 Matthew Mcculloch's NPI number?

The NPI number for Matthew Mcculloch is 1326401019. It was assigned to this individual provider in the NPPES registry on March 31, 2016.

Where is Matthew Mcculloch located?

Matthew Mcculloch practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2725.

What is Matthew Mcculloch's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Matthew Mcculloch enrolled in Medicare?

Yes. Matthew Mcculloch is registered in the Medicare PECOS enrollment system.

What insurance does Matthew Mcculloch accept?

Health plans from Medica and UnitedHealthcare list Matthew Mcculloch 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 Matthew Mcculloch was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.