Jeffrey Posner, M.D.
Nephrology Physician · Owings Mills, MD
Jeffrey Posner, M.D. is a nephrology physician with a practice address in Owings Mills, Maryland, and NPI 1326046210, issued on Jul 13, 2005. Check the license (Maryland D27310, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Posner
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- D27310 MD
Self-reported in NPPES; status is on the state search - Practice location
- 25 Crossroads Dr Ste 205, Owings Mills, MD 21117
- Phone
- (410) 602-7792
- Enumerated
- Jul 13, 2005
- Record last updated
- Sep 27, 2022
- Fax
- (410) 602-9889
- Medicaid ID
- 382221400 MD
- Medicare enrollment
- Enrolled (PECOS I20100429000703); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 337 in Maryland → Look up another NPI →
Also registered at 25 Crossroads Dr Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eric Brown, MDNephrology Physician1306980701
- Jennifer Colpitts, NPFamily Nurse Practitioner1902441629
- Daniel Corning, MDNephrology Physician1487213443
- Robert Fuld, M.D.Nephrology Physician1386642718
- Lorraine Harriott, AGAC-NPAcute Care Nurse Practitioner1265383111
- Reshma Kariyil, MDNephrology Physician1487150918
Verify Jeffrey Posner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D27310Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average nephrology physician in 2024
847 Medicare Part D claims for 160 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Losartan Potassium99 claims
- Furosemide55 claims
- Amlodipine Besylate54 claims
- Lisinopril53 claims
- Allopurinol52 claims
- Calcitriol44 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.
Industry payments in 2024: $155.20
7 payments; by number, the most common kind was education; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mid-Atlantic Nephrology Associates PAOwings Mills, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Posner among 337 nephrology physician records in Maryland
Jeffrey Posner, M.D. is one of 337 nephrology physician records with a practice address in Maryland. 80% 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, 85% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1980 · median 2001 among the 232 with a school on file
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Maryland
There are 337 nephrology physician records in Maryland.
All 337 in Maryland → Every provider in Owings Mills → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Eric Brown, MDOwings Mills, MD 211171306980701
- Daniel Corning, MDOwings Mills, MD 211171487213443
- Eugene Essandoh, M.D.Owings Mills, MD 211171659544138
- Robert Fuld, M.D.Owings Mills, MD 211171386642718
- Reshma Kariyil, MDOwings Mills, MD 211171487150918
- Rao Khan, MDOwings Mills, MD 211171588821508
- Leonid Klopouh, M.D.Owings Mills, MD 211171285615468
- Sonal Korgaonkar, M.D.Owings Mills, MD 211171205044419
Common questions
What is Jeffrey Posner, M.D.'s NPI number?
Jeffrey Posner, M.D.'s National Provider Identifier (NPI) is 1326046210, issued on Jul 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Posner, M.D. located?
The NPPES record lists a practice address at 25 Crossroads Dr Ste 205, Owings Mills, MD, 21117. Phone: (410) 602-7792. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Posner, M.D.'s license?
NPPES lists Maryland license number D27310, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jeffrey Posner, M.D. prescribe under Medicare Part D?
In 2024, Jeffrey Posner, M.D. had 847 Medicare Part D claims for 160 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.