NPPES file of Aug 9, 2026

Henry C. Sobo, M.D.

Internal Medicine Physician · Stamford, CT

Henry C. Sobo, M.D. is an internal medicine physician with a practice address in Stamford, Connecticut, and NPI 1245352863, issued on Apr 4, 2007. Check the license (Connecticut 033854, 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
1245352863
Name
Henry C. Sobo
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
033854 CT
Self-reported in NPPES; status is on the state search
Practice location
111 High Ridge RD, Stamford, CT 06905
Phone
(203) 348-8805
Enumerated
Apr 4, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(203) 348-6398
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 111 High Ridge RD

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

  1. Kangyan ChenAcupuncturist1316421993
  2. Laura Futterman, N.D.Naturopath1942340286
  3. Charles Gross, DPMPodiatrist1740276351
  4. Daniel Heller, N.D.Naturopath1760544092
  5. Minna Kim, N.D.Naturopath1205144888
  6. Grisell Paz, D.CNutrition Chiropractor1225388069

Verify Henry C. Sobo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 033854
    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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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

160 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Henry Sobo160
  2. Specialty average3,176

Most prescribed

  1. Ondansetron Hcl29 claims
  2. Benazepril Hcl15 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.

Henry C. Sobo among 2,623 internal medicine physician records in Connecticut

Henry C. Sobo, 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 44% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2007 · 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).

131 internal medicine physician records list a practice address in Stamford

They are 131 of the 2,774 NPPES records with a practice address in Stamford, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Uday Desai, M.D.Stamford, CT 069051124122148
  2. Vernetta Gallop, MDStamford, CT 069051811981202
  3. Erica Goldberger, M.D.Stamford, CT 069051053419648
  4. Terrance Hanlon, MDStamford, CT 069051922052695
  5. Antonios Katsigiannis, M.D.Stamford, CT 069051629157276
  6. Tulin Koparan, MDStamford, CT 069051710045703
  7. Santi Neuberger, M.D.Stamford, CT 069051013024736
  8. David Radin, MDStamford, CT 069051225076193

Common questions

What is Henry C. Sobo, M.D.'s NPI number?

Henry C. Sobo, M.D.'s National Provider Identifier (NPI) is 1245352863, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Henry C. Sobo, M.D. located?

The NPPES record lists a practice address at 111 High Ridge RD, Stamford, CT, 06905. Phone: (203) 348-8805. Providers update this record themselves, so call before visiting.

How can I verify Henry C. Sobo, M.D.'s license?

NPPES lists Connecticut license number 033854, 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 Henry C. Sobo, M.D. prescribe under Medicare Part D?

In 2024, Henry C. Sobo, M.D. had 160 Medicare Part D claims for 31 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.