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MICHELLE A MALCOLMSON MD
NPI 1164602082
Internal Medicine in Emeryville, CA

Active since November 08, 2007PECOS Enrolled
6121 HOLLIS ST STE 400, EMERYVILLE, CA 94608(510) 266-5400 Get Directions Write a Review

NPPES record last updated: January 9, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Michelle A Malcolmson Md NPPES

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

MICHELLE A MALCOLMSON MD (NPI 1164602082) is an individual internal medicine provider in Emeryville, California, licensed in California (A98339) and active in the NPI registry since November 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1164602082
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMICHELLE A MALCOLMSONCredential: MD
Location Address6121 HOLLIS ST STE 400Emeryville, CA 94608-2077
Mailing Address6121 Hollis St Ste 400Emeryville, CA 94608-2077 · (510) 266-5400
Phone(510) 266-5400
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateNovember 8, 2007
Last NPPES UpdateJanuary 9, 2025
NPPES CertifiedJanuary 9, 2025
✔ NPI 1164602082 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A98339
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
6121 HOLLIS ST STE 400, Emeryville, CA 94608
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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)

Michelle A Malcolmson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4789761248
PECOS Enrollment IDI20080408000393
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

3

Medicare enrollment records show Michelle Malcolmson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
9.1 mi
Endocrinology, Diabetes & Metabolism
1600 DIVISADERO ST
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 2,112 clinicians in this Medicare group
NPI 1235322348 (415) 353-9720
University Of California San Francisco
11 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
11 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94608 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

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

ASHTON ELIZABETH PRICE NP
Nurse Practitioner
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 266-5401
CARL MICHAEL CHING RN
Registered Nurse (Diabetes Educator)
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 645-9900
NADINE KHALIL SBAIH MD
Internal Medicine
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 266-5400
ANGELA CASSAGNE NP
Nurse Practitioner
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 266-5400
ELIZABETH WYTYCHAK DODS NP
Nurse Practitioner
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 266-5401
SABRINA LAYNE YOUNG KOHLI NP
Nurse Practitioner
6121 HOLLIS ST STE 400
EMERYVILLE, CA 94608
Alameda County (510) 266-5400

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 Michelle Malcolmson's NPI number?

The NPI number for Michelle Malcolmson is 1164602082. It was assigned to this individual provider in the NPPES registry on November 8, 2007.

Where is Michelle Malcolmson located?

Michelle Malcolmson practices at 6121 Hollis St Ste 400, Emeryville, CA 94608. The listed phone number is (510) 266-5400.

What is Michelle Malcolmson's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michelle Malcolmson enrolled in Medicare?

Yes. Michelle Malcolmson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michelle Malcolmson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Malcolmson reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). 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 Michelle Malcolmson'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 Michelle Malcolmson was last updated on January 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.