Ellen Krag, PA
Physician Assistant · Concord, MA
Ellen Krag, PA is a physician assistant with a practice address in Concord, Massachusetts, and NPI 1851454318, issued on Dec 18, 2006. Check the license (Massachusetts 458, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Krag
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 458 MA
Self-reported in NPPES; status is on the state search - Practice location
- 133 Ornac, Concord, MA 01742
- Phone
- (978) 287-3167
- Enumerated
- Dec 18, 2006
- Record last updated
- Mar 23, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (978) 287-3391
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,713 in Massachusetts → Look up another NPI →
Also registered at 133 Ornac
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sam Bagchi, M.D.Internal Medicine Physician1528011483
- Suan Baur, RNRegistered Nurse1376893396
- Peter Benjamin, M.D.Internal Medicine Physician1073669248
- Tiffany Blais, FNPNurse Practitioner1518753235
- Shawn Boland, R.PH.Pharmacist1356328389
Verify Ellen Krag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average physician assistant in 2024
125 Medicare Part D claims for 66 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 58 claims were for opioids.
Most prescribed
- Oxycodone Hcl44 claims
- Pantoprazole Sodium14 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.
Ellen Krag among 4,713 physician assistant records in Massachusetts
Ellen Krag, PA is one of 4,713 physician assistant records with a practice address in Massachusetts. 78% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2012 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 physician assistant records list a practice address in Concord
They are 28 of the 1,078 NPPES records with a practice address in Concord, and 4,713 physician assistant records in Massachusetts.
All 4,713 in Massachusetts → Every provider in Concord → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kylie Altavesta, PA-CConcord, MA 017421235776832
- Cheri Colantuoni, PA-CConcord, MA 017421912003849
- Kristen Corcoran, PA-CConcord, MA 017421366003865
- Denise Doner, PA-CConcord, MA 017421609358969
- Raquel Donnelly, PA-CConcord, MA 017421689125536
- Robin Grimes, PHYSICIAN ASSISTANTConcord, MA 017421508088543
- Laura Helsing, PA-C, MPAS, MPHConcord, MA 017421760723571
- Mia Henner, PA-CConcord, MA 017421679064372
Common questions
What is Ellen Krag, PA's NPI number?
Ellen Krag, PA's National Provider Identifier (NPI) is 1851454318, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Krag, PA located?
The NPPES record lists a practice address at 133 Ornac, Concord, MA, 01742. Phone: (978) 287-3167. Providers update this record themselves, so call before visiting.
How can I verify Ellen Krag, PA's license?
NPPES lists Massachusetts license number 458, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Krag, PA prescribe under Medicare Part D?
In 2024, Ellen Krag, PA had 125 Medicare Part D claims for 66 beneficiaries; the average among physician assistant prescribers was 830. 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.