Dr. Jeffrey N. Posner, MD
- Medicare services, 2024
- 2,210
- Medicare patients, 2024
- 631
- Part D claims, 2024
- 847
- Hospital affiliations
- 5
- Industry payments
- $1,261
- Practice address
- 1589 Sulphur Spring Rd, Halethorpe, MD 21227
- Practice phone
- Call (410) 825-3690
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dulaney Towson Dialysis Center
Halethorpe, Maryland
Find Dr. Posner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jeffrey N. Posner is a nephrologist in Halethorpe, Maryland
Dr. Posner practices at Dulaney Towson Dialysis Center in Halethorpe, Maryland.
Dr. Posner's NPI, 1326046210, was assigned on July 13, 2005. Dr. Posner graduated from State University of New York at Stony Brook, School of Medicine in 1980. Dr. Posner holds Maryland license D27310.
- NPI
- 1326046210NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204994056
- NPI enumeration date
- July 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 825-3690
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeffrey N. Posner practices at Dulaney Towson Dialysis Center in Halethorpe, Maryland
Dr. Posner's primary practice is Dulaney Towson Dialysis Center, at 1589 Sulphur Spring Rd, Halethorpe, MD 21227 in Baltimore County. The practice phone is (410) 825-3690.
- Dulaney Towson Dialysis Center1589 Sulphur Spring Rd, Halethorpe, MD 21227 · Baltimore CountyPhone(410) 825-3690
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeffrey N. Posner is affiliated with 10 sites of care and 1 medical group
Dr. Posner's primary practice is Dulaney Towson Dialysis Center in Halethorpe, Maryland. Dr. Posner is also affiliated with The Johns Hopkins Hospital. The medical group on file is Mid-Atlantic Nephrology Associates. Dmand AI also links Dr. Posner to 4 more hospitals, 3 dialysis centers and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeffrey N. Posner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Posner practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dulaney Towson Dialysis Center | Available with a free account |
| +9 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeffrey N. Posner is one of 279 nephrologists in Maryland
Nephrology is Dr. Posner's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Posner is licensed in Maryland.
Specialties and state licenses
- Nephrology, MarylandPrimary
Nephrologists near Dr. Posner
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jeffrey N. Posner billed Medicare for 2,210 services in 2024
CMS data shows 2,210 Medicare services from Dr. Posner across 14 procedure codes in 2024, for 631 Medicare patients. Medicare paid $126,770 for them.
Dr. Posner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0552024: 84220%
- Lab and pathology
- 2023: 8242024: 67218%
- Other services
- 2023: 192024: 3911958%
- Tests and treatments
- 2023: 6812024: 30555%
Where Dr. Posner's Medicare services took place, 2024
- In an office1,76480%
- In a facility44620%
Dr. Posner compared with the Maryland median for nephrologists, 2024
- Dr. Posner
- Maryland median
- Medicare services
- 2,210vs 1,39259% above
- Medicare patients
- 631vs 41751% above
- Part D claims
- 628vs 47233% above
Medians across 268 nephrologists in Maryland with Dmand AI profiles that report each measure.
Dr. Posner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Posner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Posner and other nephrologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeffrey N. Posner treated 631 Medicare patients in 2024, average age 75
CMS counts 631 Medicare patients who saw Dr. Posner in 2024. The largest group is 75 to 84, with 271 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 3.30, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Posner's median patient age at 72, with 48% women.
Dr. Posner's Medicare patients by age, 2024
Dr. Posner's Medicare patients by sex, 2024
- Women29246%
- Men33954%
Chronic conditions among Dr. Posner's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes56%
- Ischemic heart disease48%
- Heart failure41%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Posner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeffrey N. Posner wrote 847 Medicare Part D claims in 2024
In 2024, Dr. Posner wrote 847 Medicare Part D claims for 160 patients. 87% of them were for generic drugs. CMS names the drug for 628 of them, across 18 drugs with 11 or more claims each, at $111,577 in total drug cost. In 2023, CMS named 582 claims across 18 drugs.
Dr. Posner's Part D claims by kind of drug, 2024
- Generic740 claims87%
- Brand-name107 claims13%
Dr. Posner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Posner's Part D claims, 2024
- Antibiotics1%12 of 847 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5822024: 6288%
Drugs named by CMS: 18 in 2024, 18 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Jeffrey N. Posner takes part in Medicare
Dr. Posner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jeffrey N. Posner received $1,261 in industry payments from 2016 to 2025
CMS Open Payments shows 28 general payments to Dr. Posner from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 89% of the total. Baxter Healthcare paid the most, $338.
General payments to Dr. Posner by program year, 2016 to 2025
General payments to Dr. Posner by kind, 2016 to 2025
- Food and beverage$1,11989%
- Education$14211%
Companies that paid Dr. Posner the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeffrey N. Posner graduated from State University of New York at Stony Brook, School of Medicine
Dr. Posner graduated from State University of New York at Stony Brook, School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jeffrey N. Posner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jeffrey N. Posner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jeffrey N. Posner's NPI number?
Dr. Jeffrey N. Posner's NPI number is 1326046210. It was assigned on July 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeffrey N. Posner?
Dr. Jeffrey N. Posner is a nephrologist in Halethorpe, Maryland. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Jeffrey N. Posner practice?
Dr. Posner practices at 1589 Sulphur Spring Rd, Halethorpe, MD 21227. Dr. Posner's primary practice is Dulaney Towson Dialysis Center in Halethorpe, Maryland. Dmand AI also links Dr. Posner to 4 hospitals, 3 dialysis centers and 1 group practice or clinic.
What is Dr. Jeffrey N. Posner's office phone number?
The practice phone on file for Dr. Posner is (410) 825-3690.
What is Dr. Jeffrey N. Posner's medical license number?
Dr. Posner holds Maryland license D27310.
Which hospitals is Dr. Jeffrey N. Posner affiliated with?
Dr. Posner is affiliated with The Johns Hopkins Hospital. Dmand AI links Dr. Posner to 4 more hospitals.
What medical group is Dr. Jeffrey N. Posner part of?
Dr. Posner is linked to Mid-Atlantic Nephrology Associates.
Does Dr. Jeffrey N. Posner accept Medicare?
Yes. CMS data shows Dr. Posner billed Medicare for 2,210 services in 2024, and Dr. Posner accepts Medicare assignment.
How many Medicare patients does Dr. Jeffrey N. Posner see?
CMS counts 631 Medicare patients who saw Dr. Posner in 2024, with an average age of 75.
What services does Dr. Jeffrey N. Posner bill to Medicare?
In 2024, Dr. Posner's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and lab and pathology test (82570).
Show 4 more questionsShow fewer questions
Where did Dr. Jeffrey N. Posner go to medical school?
Dr. Posner graduated from State University of New York at Stony Brook, School of Medicine in 1980.
What drugs does Dr. Jeffrey N. Posner prescribe most?
In 2024 Medicare Part D data, Dr. Posner's most prescribed drugs by claims were Losartan Potassium, Furosemide and Amlodipine Besylate.
Has Dr. Jeffrey N. Posner received payments from drug or device companies?
CMS Open Payments shows $1,261 in general payments to Dr. Posner from 9 companies from 2016 to 2025. The largest total came from Baxter Healthcare.
How long has Dr. Jeffrey N. Posner been practicing?
Dr. Posner graduated from medical school in 1980, 46 years ago.
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