Registry data as of Aug 27, 2026

Si Zhang, D.O.

Pain Medicine (Anesthesiology) Physician · Stamford, CT

Si Zhang, D.O. is a pain medicine (anesthesiology) physician with a practice address in Stamford, Connecticut, and NPI 1306282652, issued on May 14, 2013. Check the license (Connecticut 61066, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1306282652
Name
Si Zhang
Credential
D.O.
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
61066 CT
Self-reported in NPPES; status is on the state search
Practice location
29 Hospital Plz Ste 602, Stamford, CT 06902
Phone
(203) 276-2451
Enumerated
May 14, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 29 Hospital Plz Ste 602

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

  1. Derek Cheng, D.O.Neurology Physician1013356716
  2. Laura Kragt, PAPhysician Assistant1043611643
  3. Donald Price, M.D.Neuropathology Physician1386738813
  4. Max Shutran, M.D.Neurological Surgery Physician1508278227
  5. Tammie Tam, MDNeurology Physician1609403039
  6. Jason Wong, MDNeuromuscular Medicine (Psychiatry & Neurology) Physician1902036122

Verify Si Zhang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 61066
    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 Connecticut 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.

39% more Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

2,410 Medicare Part D claims for 326 beneficiaries, against an average of 1,731 among the 2,346 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 893 claims were for opioids.

  1. Si Zhang2,410
  2. Specialty average1,731

Most prescribed

  1. Gabapentin361 claims
  2. Pregabalin262 claims
  3. Oxycodone Hcl214 claims
  4. Oxycodone-Acetaminophen186 claims
  5. Duloxetine Hcl160 claims
  6. Tramadol Hcl126 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 Medicare quality score for 2023: 79.1 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. Qualityout of 100 · 30% of the final score73.2
  2. Costout of 100 · 30%57.9
  3. Promoting interoperabilityout of 100 · 25%99.0
  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: $75.00

2 payments, mostly compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Becton, Dickinson and Company. The 2,342 providers of this specialty with any payment received $3,354.83 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Si Zhang$75.00
  2. Specialty average$3,354.83

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

One hospital or facility affiliation

  1. Stamford Health Medical Group IncStamford, CT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Pain Medicine (Anesthesiology) Physician providers in Connecticut

There are 32 pain medicine (anesthesiology) physician records in Connecticut.

Other pain medicine (anesthesiology) physician records in Connecticut

  1. Colin Beals-Reid, MDNew Haven, CT1720643414
  2. Jeffrey Begleiter, MDNew Britain, CT1427084326
  3. Kenneth Blazier, M.D.Waterbury, CT1487674198
  4. Jeffrey Carruth, M.D.Milford, CT1861529018
  5. Ayse Genc, MDStamford, CT1417017989
  6. Zhaodi Gong, MD, PHDWestport, CT1194977603
  7. James Haddox, DDS, MDMonroe, CT1063679165
  8. Edward Hargus, MDEast Hartford, CT1396703872
  9. Rengarajan Janakiraman, MDTorrington, CT1407173479
  10. Sudhir Kadian, M.D.New London, CT1366497182

Common questions

What is Si Zhang, D.O.'s NPI number?

Si Zhang, D.O.'s National Provider Identifier (NPI) is 1306282652, issued on May 14, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Si Zhang, D.O. located?

The NPPES record lists a practice address at 29 Hospital Plz Ste 602, Stamford, CT, 06902. Phone: (203) 276-2451. Providers update this record themselves, so call before visiting.

How can I verify Si Zhang, D.O.'s license?

NPPES lists Connecticut license number 61066, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Si Zhang, D.O. prescribe under Medicare Part D?

In 2024, Si Zhang, D.O. had 2,410 Medicare Part D claims for 326 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,731. Part D covers Medicare prescriptions only.

What is Si Zhang, D.O.'s Medicare quality score?

The 2023 MIPS final score is 79.1 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.