NPPES file of Aug 9, 2026

Nu Chai, M.D.

Interventional Pain Medicine Physician · San Francisco, CA

Nu Chai, M.D. is an interventional pain medicine physician with a practice address in San Francisco, California, and NPI 1073830477, issued on Apr 23, 2010. Check the license (California A128155, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1073830477
Name
Nu Chai
Credential
M.D.
Primary taxonomy
Interventional Pain Medicine Physician 208VP0014X
License number
A128155 CA
Self-reported in NPPES; status is on the state search
Practice location
2255 Post St, San Francisco, CA 94115
Phone
(415) 885-7246
Enumerated
Apr 23, 2010
Record last updated
Jul 6, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170515001861); accepts Medicare assignment
Medical or professional school
Geisel School Of Medicine At Dartmouth, 2010
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 2255 Post St

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

  1. Mario De Pinto, MDPain Medicine (Anesthesiology) Physician1457437253
  2. Zhonghui Guan, MDAnesthesiology Physician1720109176
  3. Noelle Lara, PH.D.Clinical Psychologist1225583164
  4. Thien Le, MDPain Medicine (Anesthesiology) Physician1841796018
  5. Susan Lee, MDAnesthesiology Physician1932301397
  6. Pamela Palmer, M.D.Anesthesiology Physician1508892894

Verify Nu Chai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A128155
    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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92% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024

193 Medicare Part D claims for 34 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 19 claims were for opioids.

  1. Nu Chai193
  2. Specialty average2,306

Most prescribed

  1. Duloxetine Hcl43 claims
  2. Pregabalin38 claims
  3. Cyclobenzaprine Hcl13 claims
  4. Aimovig Autoinjector11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $4,232.36

14 payments; by number, the most common kind was food and beverage; the largest payer was Averitas Pharma Inc. The 1,966 providers of this specialty with any payment received $3,889.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nu Chai$4,232.36
  2. Specialty average$3,889.53

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

Bills Medicare through 3 group practices

  1. Ucsf Medical Group Business ServicesSan Francisco, CA
  2. University Anesthesia Medical GroupSan Francisco, CA
  3. University OF California San FranciscoSan Francisco, CA

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

Nu Chai among 219 interventional pain medicine physician records in California

Nu Chai, M.D. is one of 219 interventional pain 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 2010, is newer than 71% of them.

  • NPI issued2010 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2010 · median 2003 among the 167 with a school on file
  • Record last updated2015 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Pain Medicine Physician providers in California

There are 219 interventional pain medicine physician records in California.

The 8 interventional pain medicine physician records with the nearest ZIP codes

  1. Konrad Ng, M.D.San Francisco, CA 941151700074549
  2. Conor O'Neill, M.D.San Francisco, CA 941151326177171
  3. Lawrence Poree, MDSan Francisco, CA 941151457391922
  4. Elliot Krames, M.D.San Francisco, CA 941091609096536
  5. Brandon Son Nguyen, DOSan Francisco, CA 941091508882564
  6. Lorenzo Hughes, MDSan Francisco, CA 941051033230404
  7. John Benjamin Arevalo, MD, MBASan Francisco, CA 941431629561170
  8. John Schoenberger, M.D.San Carlos, CA 940701215922935

Common questions

What is Nu Chai, M.D.'s NPI number?

Nu Chai, M.D.'s National Provider Identifier (NPI) is 1073830477, issued on Apr 23, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Nu Chai, M.D. located?

The NPPES record lists a practice address at 2255 Post St, San Francisco, CA, 94115. Phone: (415) 885-7246. Providers update this record themselves, so call before visiting.

How can I verify Nu Chai, M.D.'s license?

NPPES lists California license number A128155, 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 Nu Chai, M.D. prescribe under Medicare Part D?

In 2024, Nu Chai, M.D. had 193 Medicare Part D claims for 34 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. Part D covers Medicare prescriptions only.

What is Nu Chai, M.D.'s MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.