NPPES file of Aug 9, 2026

Chinh Phan, D.O.

Critical Care Medicine (Internal Medicine) Physician · Sacramento, CA

Chinh Phan, D.O. is a critical care medicine (internal medicine) physician with a practice address in Sacramento, California, and NPI 1881820876, issued on Jun 3, 2009. Check the license (California 20A11954, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881820876
Name
Chinh Phan
Credential
D.O.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
20A11954 CA
Self-reported in NPPES; status is on the state search
Practice location
2279 45TH St, Sacramento, CA 95817
Phone
(916) 734-5959
Enumerated
Jun 3, 2009
Record last updated
Sep 19, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160601001195); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2279 45TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Alexis Agustin, RNPediatric Oncology Registered Nurse1649000316
  2. Kavya Babu, MDInternal Medicine Physician1922682392
  3. Niri CarrollGenetic Counselor (M.S.)1174017149
  4. Guadalupe Carvajal, LCGCGenetic Counselor (M.S.)1730880444
  5. John CawleyNurse Practitioner1164153540
  6. Deanna ChavezPediatric Registered Nurse1427888122

Verify Chinh Phan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A11954
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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84% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024

113 Medicare Part D claims for 30 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.

  1. Chinh Phan113
  2. Specialty average696

Most prescribed

  1. Trelegy Ellipta15 claims
  2. Ventolin Hfa13 claims
  3. Spiriva Handihaler11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $80,254.51

73 payments; by number, the most common kind was education; the largest payer was Intuitive Surgical, Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chinh Phan$80,255
  2. Specialty average$2,959

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Regents OF The Univ OF CASacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Chinh Phan among 723 critical care medicine (internal medicine) physician records in California

Chinh Phan, D.O. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 59% of them.

  • NPI issued2009 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2009 · median 2005 among the 559 with a school on file
  • Record last updated2018 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in California

There are 723 critical care medicine (internal medicine) physician records in California.

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Jason Adams, M.D.Sacramento, CA 958171134367568
  2. Timothy Albertson, MD, PHD, MPHSacramento, CA 958171184607236
  3. Katyayini Aribindi, M.D.Sacramento, CA 958171902338122
  4. Hugh Black, MDSacramento, CA 958171376523498
  5. Andrew Chan, MBSacramento, CA 958171114902426
  6. Nicholas Kenyon, M.D.Sacramento, CA 958171689657512
  7. John Millar, M.D.Sacramento, CA 958171023092871
  8. Reika MiyokawaSacramento, CA 958171619408333

Common questions

What is Chinh Phan, D.O.'s NPI number?

Chinh Phan, D.O.'s National Provider Identifier (NPI) is 1881820876, issued on Jun 3, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Chinh Phan, D.O. located?

The NPPES record lists a practice address at 2279 45TH St, Sacramento, CA, 95817. Phone: (916) 734-5959. Providers update this record themselves, so call before visiting.

How can I verify Chinh Phan, D.O.'s license?

NPPES lists California license number 20A11954, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chinh Phan, D.O. prescribe under Medicare Part D?

In 2024, Chinh Phan, D.O. had 113 Medicare Part D claims for 30 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.