Ella Ruth Derbyshire, MD
Family Medicine Physician · Cambridge, NY
Ella Ruth Derbyshire, MD is a family medicine physician with a practice address in Cambridge, New York, and NPI 1285678938, issued on Jun 15, 2006. Check the license (New York 280886, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ella Ruth Derbyshire
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 280886 NY
5690 AK
Self-reported in NPPES; status is on the state search - Practice location
- 35 Gilbert St, Cambridge, NY 12816
- Phone
- (518) 677-3961
- Enumerated
- Jun 15, 2006
- Record last updated
- Apr 5, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (518) 677-3180
- Medicaid IDs
- HS19OP AK
HS19IP AK - Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 35 Gilbert St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brandii Baker, NPFamily Nurse Practitioner1861800351
- Jennifer Baker-Porazinski, MDFamily Medicine Physician1538157623
- Mathieu Barras, M.D.Internal Medicine Physician1568085850
- Melanie Clark, NPFamily Nurse Practitioner1306272687
- Gayle Depan-Cartier, P.A.Physician Assistant1134212673
- Howard Freed, MDEmergency Medicine Physician1861574055
Verify Ella Ruth Derbyshire in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 280886Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
318 Medicare Part D claims for 45 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Omeprazole27 claims
- Spiriva Respimat23 claims
- Lisinopril21 claims
- Amlodipine Besylate18 claims
- Atorvastatin Calcium18 claims
- Ventolin Hfa16 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.
Ella Ruth Derbyshire among 6,417 family medicine physician records in New York
Ella Ruth Derbyshire, MD is one of 6,417 family medicine physician records with a practice address in New York. 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 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 family medicine physician records list a practice address in Cambridge
They are 6 of the 61 NPPES records with a practice address in Cambridge, and 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Cambridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jennifer Baker-Porazinski, MDCambridge, NY 128161538157623
- Carissa Lackey, MD, MPHCambridge, NY 128161629642624
- Peter Peff, M.D.Cambridge, NY 128161992781207
- Brandon Towey, MDCambridge, NY 128161174107080
- Katy Underwood, MDCambridge, NY 128161386261865
- Harriet Busch, M.D.Chestertown, NY 128171790799435
- Daniel Larson, MDChestertown, NY 128171083628614
- John Rugge, MDChestertown, NY 128171992719520
Common questions
What is Ella Ruth Derbyshire, MD's NPI number?
Ella Ruth Derbyshire, MD's National Provider Identifier (NPI) is 1285678938, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ella Ruth Derbyshire, MD located?
The NPPES record lists a practice address at 35 Gilbert St, Cambridge, NY, 12816. Phone: (518) 677-3961. Providers update this record themselves, so call before visiting.
How can I verify Ella Ruth Derbyshire, MD's license?
NPPES lists New York license number 280886, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ella Ruth Derbyshire, MD prescribe under Medicare Part D?
In 2024, Ella Ruth Derbyshire, MD had 318 Medicare Part D claims for 45 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.