PALANIAPPAN CHIDAMBARAM M.D.
NPI 1770651200
Internal Medicine in Portland, OR

Active since December 01, 2006PECOS EnrolledAccepts Medicare Assignment
87.76/100
CMS Quality Rating
5251 NE GLISAN ST, BLDG A, 2ND FLOOR, PORTLAND, OR 97213(503) 215-4860(503) 215-4839 Get Directions Write a Review

NPPES record last updated: February 19, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 19, 2021, Mar 14, 2017 (2 updates tracked since 2017).

About Palaniappan Chidambaram M.d. NPPES

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

PALANIAPPAN CHIDAMBARAM M.D. (NPI 1770651200) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD173966) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1770651200
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NamePALANIAPPAN CHIDAMBARAMCredential: M.D.
Location Address5251 NE GLISAN ST, BLDG A, 2ND FLOORPortland, OR 97213-3052
Mailing AddressPo Box 3158Portland, OR 97208-3158
Fax(503) 215-4839
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateDecember 1, 2006
Last NPPES UpdateFebruary 19, 20212 updates tracked since enumeration
NPPES CertifiedFebruary 19, 2021
NPI 1770651200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in OR · MD173966 Licensed in MI · 4301081783
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.

Also ListedInternal Medicine · Addiction MedicineTaxonomy 207RA0401X · License MD173966 (OR)
5251 NE GLISAN ST, Portland, OR 97213

Other Identifiers 2

Medicaid476636810MI
Medicaid500690117OR

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 and accepts Medicare assignment

Palaniappan Chidambaram M.d. 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 ID8729024146
PECOS Enrollment IDI20150821013220
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.

Areas of Expertise CMS Part B claims 2

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
39 services17 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
28 services24 patients

Hospital Affiliations CMS Care Compare

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

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97213 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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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.

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.

87.76/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.17
Promoting Interoperability100
Improvement Activities40
Cost74.03

Other Providers at the Same Location NPPES 7

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

Psychiatry & Neurology (Psychiatry)
5251 NE GLISAN ST, 2ND FLOOR
PORTLAND, OR 97213
Clinic/Center (Adult Mental Health)
5251 NE GLISAN ST, BLDG A, 2ND FLOOR
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
5251 NE GLISAN ST, 2ND FLOOR
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
5251 NE GLISAN ST, 2ND FLOOR
PORTLAND, OR 97213
Nurse Practitioner (Psychiatric/Mental Health)
5251 NE GLISAN ST, BLDG A, 2ND FLOOR
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
5251 NE GLISAN ST, BLDG A, 2ND FLOOR
PORTLAND, OR 97213
Psychiatry & Neurology (Psychiatry)
5251 NE GLISAN ST, 2ND FLOOR
PORTLAND, OR 97213

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 Palaniappan Chidambaram's NPI number?

The NPI number for Palaniappan Chidambaram is 1770651200. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Where is Palaniappan Chidambaram located?

Palaniappan Chidambaram practices at 5251 NE Glisan St Bldg A, 2nd Floor, Portland, OR 97213. The listed phone number is (503) 215-4860.

What is Palaniappan Chidambaram's specialty?

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

Is Palaniappan Chidambaram enrolled in Medicare?

Yes. Palaniappan Chidambaram 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.

What insurance does Palaniappan Chidambaram accept?

Health plans from BridgeSpan Health Company, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Palaniappan Chidambaram 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.

Is Palaniappan Chidambaram affiliated with any hospitals?

According to CMS data, Palaniappan Chidambaram is affiliated with Providence St Vincent Medical Center.

When was this NPI record last updated?

The NPPES record for Palaniappan Chidambaram was last updated on February 19, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.