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ANGELA MICHELE NIEMI MD
NPI 1699271684
Pediatrics in Santa Rosa, CA

Active since March 30, 2018PECOS Enrolled
401 BICENTENNIAL WAY, SANTA ROSA, CA 95403(707) 393-4000 Get Directions Write a Review

NPPES record last updated: April 11, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 11, 2024, Aug 16, 2021, Mar 30, 2018 (3 updates tracked since 2018).

About Angela Michele Niemi Md NPPES

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

ANGELA MICHELE NIEMI MD (NPI 1699271684) is an individual pediatrics provider in Santa Rosa, California, licensed in California (A165188) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699271684
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameANGELA MICHELE NIEMICredential: MD
Location Address401 BICENTENNIAL WAYSanta Rosa, CA 95403-2149
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Phone(707) 393-4000
Sole ProprietorNo
Enumeration DateMarch 30, 2018
Last NPPES UpdateApril 11, 20243 updates tracked since enumeration
NPPES CertifiedApril 11, 2024
✔ NPI 1699271684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A165188
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
401 BICENTENNIAL WAY, Santa Rosa, CA 95403
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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)

Angela Michele Niemi Md 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 Reassignments

2

Medicare enrollment records show Angela Niemi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
35 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000
County Of Santa Clara
79 mi
Clinic/Center
2741 MIDDLEFIELD RD
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1285228080 (408) 885-5000

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 95403 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
$96.16 typical visit price
range $63.04 – $187.01
Typical copayment $24.04 (range $15.76 – $46.75)
Most-billed visit code 99203
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
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 20

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

MS. JESSICA ANNE RUTLAND R.D.
Dietitian, Registered
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 393-4787
KURT FALKENBERG P.T.
Physical Therapist
401 BICENTENNIAL WAY, EAST BUILDING, SUITE 190
SANTA ROSA, CA 95403
Sonoma County (707) 571-3352
DELILAH PATTERSON CRNA
Nurse Anesthetist, Certified Registered
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 393-4616
KRISZTINA J. BALAZS MD
Pediatrics
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 571-4000
JOHN F. KUNKEL MD
Pathology (Anatomic Pathology)
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 571-4000
CRISTINA COREY SCHROEN LCSW
Social Worker (Clinical)
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 571-2536
JIE GIOK RAHARDJA PHARMD
Pharmacist
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (707) 393-4652
CONOR WILLIAM BOWMAN PHARM.D.
Pharmacist
401 BICENTENNIAL WAY
SANTA ROSA, CA 95403
Sonoma County (818) 522-1238

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 Angela Niemi's NPI number?

The NPI number for Angela Niemi is 1699271684. It was assigned to this individual provider in the NPPES registry on March 30, 2018.

Where is Angela Niemi located?

Angela Niemi practices at 401 Bicentennial Way, Santa Rosa, CA 95403. The listed phone number is (707) 393-4000.

What is Angela Niemi's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Angela Niemi enrolled in Medicare?

Yes. Angela Niemi is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Angela Niemi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Angela Niemi reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Vallejo, CA) and County Of Santa Clara (Palo Alto, 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 Angela Niemi'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 Angela Niemi was last updated on April 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.