Frederick K. Nahm, MD
Neurology Physician · Greenwich, CT
Frederick K. Nahm, MD is a neurology physician with a practice address in Greenwich, Connecticut, and NPI 1548242647, issued on Nov 16, 2005. Check the license (Connecticut 040098, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Frederick K. Nahm
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 040098 CT
Self-reported in NPPES; status is on the state search - Practice location
- 24 Home PL, Greenwich, CT 06830
- Phone
- (203) 661-9383
- Enumerated
- Nov 16, 2005
- Record last updated
- Jan 24, 2024
- Fax
- (203) 661-6724
- Medicaid ID
- 001400986 CT
- Medicare enrollment
- Enrolled (PECOS I20040714000404); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1997
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 345 in Connecticut → Look up another NPI →
Verify Frederick K. Nahm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 040098Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- American Neuromonitoring Associates, PCGreenwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frederick K. Nahm among 345 neurology physician records in Connecticut
Frederick K. Nahm, MD is one of 345 neurology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1997 · median 2009 among the 216 with a school on file
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Connecticut
There are 345 neurology physician records in Connecticut.
All 345 in Connecticut → Every provider in Greenwich → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- David Hahn, MDGreenwich, CT 068301053625459
- Matthew McConnell, MDGreenwich, CT 068301699018044
- Andrew Michalak, M.D.Greenwich, CT 068301720440985
- James Morris, M.D. PH.D.Greenwich, CT 068301215969985
- Jennifer Werely, M.D.Greenwich, CT 068301225265028
- Lori Jensen, MDGreenwich, CT 068311619934130
- Stanley Resor, M.D.Greenwich, CT 068311205947306
- Alice Rusk, M.D.Greenwich, CT 068311508971318
Common questions
What is Frederick K. Nahm, MD's NPI number?
Frederick K. Nahm, MD's National Provider Identifier (NPI) is 1548242647, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Frederick K. Nahm, MD located?
The NPPES record lists a practice address at 24 Home PL, Greenwich, CT, 06830. Phone: (203) 661-9383. Providers update this record themselves, so call before visiting.
How can I verify Frederick K. Nahm, MD's license?
NPPES lists Connecticut license number 040098, 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.
What is Frederick K. Nahm, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.