Registry data as of Aug 27, 2026

Fred Yeo, MD

Nephrology Physician · Groton, CT

Fred Yeo, MD is a nephrology physician with a practice address in Groton, Connecticut, and NPI 1881686616, issued on Aug 18, 2005. Check the license (Connecticut 54505, 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
1881686616
Name
Fred Yeo
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
54505 CT
D0061109 MD
MD15165 RI
Self-reported in NPPES; status is on the state search
Practice location
Nhcne Groton, Groton, CT 06340
Phone
(860) 694-6481
Enumerated
Aug 18, 2005
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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Verify Fred Yeo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 54505
    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.

4.5 times the Medicare Part D claims of the average nephrology physician in 2024

6,840 Medicare Part D claims for 305 beneficiaries, against an average of 1,511 among the 8,473 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 135 claims were for opioids.

  1. Fred Yeo6,840
  2. Specialty average1,511

Most prescribed

  1. Eliquis357 claims
  2. Gabapentin264 claims
  3. Trazodone Hcl251 claims
  4. Atorvastatin Calcium242 claims
  5. Furosemide212 claims
  6. Levothyroxine Sodium208 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.

Nephrology Physician providers in Connecticut

There are 142 nephrology physician records in Connecticut.

Other nephrology physician records in Connecticut

  1. Mervet Abouelkair, M.D.New Britain, CT1740295112
  2. Ali Abu-Alfa, MDNew Haven, CT1841274610
  3. Nancy Adams, M.D.Farmington, CT1770588592
  4. Bayode Afolalu, M.D.Orange, CT1548442726
  5. Feras Al Shami, M.D.New Britain, CT1982086765
  6. Robert Alpern, MDNew Haven, CT1477785285
  7. Peter Aronson, MDNew Haven, CT1124002985
  8. Shehryar Ashraf, M.D.Farmington, CT1982966834
  9. Revekka BabayevStamford, CT1992022008
  10. David Baggish, M.D.Middletown, CT1598748808

Common questions

What is Fred Yeo, MD's NPI number?

Fred Yeo, MD's National Provider Identifier (NPI) is 1881686616, issued on Aug 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Fred Yeo, MD located?

The NPPES record lists a practice address at Nhcne Groton, Groton, CT, 06340. Phone: (860) 694-6481. Providers update this record themselves, so call before visiting.

How can I verify Fred Yeo, MD's license?

NPPES lists Connecticut license number 54505, 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 Fred Yeo, MD prescribe under Medicare Part D?

In 2024, Fred Yeo, MD had 6,840 Medicare Part D claims for 305 beneficiaries; the average among nephrology physician prescribers was 1,511. Part D covers Medicare prescriptions only.

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.