NPPES file of Aug 9, 2026

Si-Hoi Lam, M.D.

Internal Medicine Physician · Branford, CT

Si-Hoi Lam, M.D. is an internal medicine physician with a practice address in Branford, Connecticut, and NPI 1477574929, issued on Jul 21, 2006. Check the license (Connecticut 024800, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1477574929
Name
Si-Hoi Lam
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
024800 CT
Self-reported in NPPES; status is on the state search
Practice location
173 Montowese St, Branford, CT 06405
Phone
(203) 483-6285
Enumerated
Jul 21, 2006
Record last updated
Jul 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(203) 483-6217
Medicaid ID
001248004 CT
Medicare enrollment
Enrolled (PECOS I20040614000826); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1980
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 173 Montowese St

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

  1. Joseph Brunschwig, LMFTMarriage & Family Therapist1528108040
  2. Linda Mancini, LCSWClinical Social Worker1851574701
  3. Jennifer MillerClinical Social Worker1518504521
  4. Tania Patricelli, LPCCounselor1982840930
  5. Jodi Silverman, LCSWClinical Social Worker1659571636
  6. Maureen Tranquilli, LCSWClinical Social Worker1023531928

Verify Si-Hoi Lam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 024800
    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.

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1% fewer Medicare Part D claims than the average internal medicine physician in 2024

3,155 Medicare Part D claims for 238 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 23 claims were for opioids.

  1. Si-Hoi Lam3,155
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium473 claims
  2. Metoprolol Succinate135 claims
  3. Lisinopril126 claims
  4. Hydrochlorothiazide114 claims
  5. Rosuvastatin Calcium114 claims
  6. Simvastatin95 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: $751.37

27 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Si-Hoi Lam$751.37
  2. Specialty average$1,303.06

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

Si-Hoi Lam among 2,623 internal medicine physician records in Connecticut

Si-Hoi Lam, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 52% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1980 · median 2004 among the 1,646 with a school on file
  • Record last updated2013 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 internal medicine physician records list a practice address in Branford

They are 20 of the 661 NPPES records with a practice address in Branford, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Antonio Daria, DOBranford, CT 064051447443676
  2. David Eilbott, MDBranford, CT 064051720094188
  3. Jon Fessel, MDBranford, CT 064051205843554
  4. Jaimy Honig, MDBranford, CT 064051518921857
  5. Mark Kasper, MDBranford, CT 064051780648238
  6. Richard Kaufman, MDBranford, CT 064051215991575
  7. Denis Miller, MDBranford, CT 064051578570594
  8. Mark Perrotti, MDBranford, CT 064051699723049

Common questions

What is Si-Hoi Lam, M.D.'s NPI number?

Si-Hoi Lam, M.D.'s National Provider Identifier (NPI) is 1477574929, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Si-Hoi Lam, M.D. located?

The NPPES record lists a practice address at 173 Montowese St, Branford, CT, 06405. Phone: (203) 483-6285. Providers update this record themselves, so call before visiting.

How can I verify Si-Hoi Lam, M.D.'s license?

NPPES lists Connecticut license number 024800, 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-Hoi Lam, M.D. prescribe under Medicare Part D?

In 2024, Si-Hoi Lam, M.D. had 3,155 Medicare Part D claims for 238 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.