Alcohol DrinkingAntihypertensive AgentsDiet
Dr. Geoffrey Stephan Teehan, MD
NPI1558366237PAC ID4486620739
- Medicare services, 2024
- 1,435
- Medicare patients, 2024
- 393
- Part D claims, 2024
- 1,595
- Publications
- 5
- Hospital affiliations
- 5
- Practice address
- 100 E Lancaster Ave, Wayne, PA 19087
- Practice phone
- Call (610) 645-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lankenau Medical Center
Wayne, Pennsylvania
Find Dr. Teehan's professional email, personal email and mobile number
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Dr. Geoffrey Stephan Teehan is a nephrologist in Wayne, Pennsylvania
Dr. Teehan practices at Lankenau Medical Center in Wayne, Pennsylvania.
Dr. Teehan's NPI, 1558366237, was assigned on June 17, 2005. Dr. Teehan graduated from Jefferson Medical College of Thomas Jefferson University in 1998. Dr. Teehan holds Pennsylvania license MD426100.
NPI and contact details
- NPI
- 1558366237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486620739
- NPI enumeration date
- June 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (610) 645-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey Stephan Teehan practices at Lankenau Medical Center in Wayne, Pennsylvania
Dr. Teehan's primary practice is Lankenau Medical Center, at 100 E Lancaster Ave, Wayne, PA 19087 in Delaware County. The practice phone is (610) 645-2000.
- Lankenau Medical Center100 E Lancaster Ave, Wayne, PA 19087 · Delaware CountyPhone(610) 645-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Geoffrey Stephan Teehan is affiliated with 8 sites of care and 2 medical groups
Dr. Teehan's primary practice is Lankenau Medical Center in Wayne, Pennsylvania. Dr. Teehan is also affiliated with Lankenau Medical Center. The medical group on file is Kidney Care Specialists-Medical Associates of Drexel Hill. Dmand AI also links Dr. Teehan to 4 more hospitals, 2 dialysis centers and 1 medical group, each named with a free account.
Lankenau Medical CenterPrimary
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. Geoffrey Stephan Teehan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Teehan practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lankenau Medical Center | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Geoffrey Stephan Teehan is one of 552 nephrologists in Pennsylvania
Nephrology is Dr. Teehan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Teehan is licensed in Pennsylvania.
Specialties and state licenses
- Nephrology, PennsylvaniaPrimary
Nephrologists near Dr. Teehan
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
552nephrologists in Pennsylvania
8nephrologists in Wayne
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Geoffrey Stephan Teehan billed Medicare for 1,435 services in 2024
CMS data shows 1,435 Medicare services from Dr. Teehan across 15 procedure codes in 2024, for 393 Medicare patients. Medicare paid $78,067 for them.
Medicare services, 20241,435
Medicare patients393
Paid by Medicare$78,067
Procedure codes15
Dr. Teehan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8252024: 8756%
- Other services
- 2023: 8542024: 39054%
- Tests and treatments
- 2023: 4082024: 15163%
- Lab and pathology
- 2023: 402024: 1953%
Where Dr. Teehan's Medicare services took place, 2024
- In an office97068%
- In a facility46532%
Dr. Teehan compared with the Pennsylvania median for nephrologists, 2024
- Dr. Teehan
- Pennsylvania median
- Medicare services
- 1,435vs 77286% above
- Medicare patients
- 393vs 27543% above
- Part D claims
- 1,395vs 5522.5 times
Medians across 548 nephrologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Teehan'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Teehan and other nephrologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey Stephan Teehan treated 393 Medicare patients in 2024, average age 75
CMS counts 393 Medicare patients who saw Dr. Teehan in 2024. The largest group is 75 to 84, with 160 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 18% are also on Medicaid. Their average risk score is 3.67, 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. Teehan's median patient age at 71, with 46% women.
Medicare patients, 2024393
Average age75
Average risk score3.67
Also on Medicaid18%
Dr. Teehan's Medicare patients by age, 2024
Dr. Teehan's Medicare patients by sex, 2024
- Women19951%
- Men19449%
Chronic conditions among Dr. Teehan's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease60%
- Diabetes56%
- Arthritis51%
- Heart failure51%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Teehan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Geoffrey Stephan Teehan wrote 1,595 Medicare Part D claims in 2024
In 2024, Dr. Teehan wrote 1,595 Medicare Part D claims for 264 patients. 86% of them were for generic drugs. CMS names the drug for 1,395 of them, across 26 drugs with 11 or more claims each, at $188,098 in total drug cost. In 2023, CMS named 1,402 claims across 28 drugs.
Part D claims, 20241,595
Drugs named by CMS26
Total drug cost$188,098
Part D patients264
Dr. Teehan's Part D claims by kind of drug, 2024
- Generic1,369 claims86%
- Brand-name226 claims14%
Dr. Teehan'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. Teehan's Part D claims, 2024
- Antibiotics1%12 of 1,595 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: 1,4022024: 1,395No change
Drugs named by CMS: 26 in 2024, 28 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
Dr. Geoffrey Stephan Teehan offers telehealth to Medicare patients
Dr. Teehan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Teehan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Geoffrey Stephan Teehan has 5 publications on record
Dmand AI links 5 papers to Dr. Teehan, published from 2011 to 2016. 2011 was the busiest year, with 2. Dr. Teehan's most frequent co-authors are Brett C. Gilbert, DO, Anupa Khastgir, MD and Arvind Madan, MD.
Papers5
Years published2011 to 2016
Dr. Teehan's papers by year, 2011 to 2016
Dr. Teehan's most frequent co-authors
Recent publications by Dr. Teehan
Clin Exp Nephrol
Anti-Bacterial AgentsBiopsyKidney
Am J Med Sci
CreatinineNephrotic SyndromePennsylvania
See who Dr. Teehan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Teehan works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Geoffrey Stephan Teehan received $109,113 in industry payments from 2016 to 2025
CMS Open Payments shows 237 general payments to Dr. Teehan from 28 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 83% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $47,023.
General payments to Dr. Teehan by program year, 2016 to 2025
General payments to Dr. Teehan by kind, 2016 to 2025
$109.1Kin total
- Speaker and faculty fees$90,06683%
- Food and beverage$6,6296%
- Travel and lodging$6,4476%
- Consulting fees$5,7975%
- Education$1740%
Companies that paid Dr. Teehan 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. Geoffrey Stephan Teehan graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Teehan graduated from Jefferson Medical College of Thomas Jefferson University in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Geoffrey Stephan Teehan'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Geoffrey Stephan Teehan
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. Geoffrey Stephan Teehan's NPI number?
Dr. Geoffrey Stephan Teehan's NPI number is 1558366237. It was assigned on June 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey Stephan Teehan?
Dr. Geoffrey Stephan Teehan is a nephrologist in Wayne, Pennsylvania. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Geoffrey Stephan Teehan practice?
Dr. Teehan practices at 100 E Lancaster Ave, Wayne, PA 19087. Dr. Teehan's primary practice is Lankenau Medical Center in Wayne, Pennsylvania. Dmand AI also links Dr. Teehan to 4 hospitals, 2 dialysis centers and 1 medical group.
What is Dr. Geoffrey Stephan Teehan's office phone number?
The practice phone on file for Dr. Teehan is (610) 645-2000.
What is Dr. Geoffrey Stephan Teehan's medical license number?
Dr. Teehan holds Pennsylvania license MD426100.
Which hospitals is Dr. Geoffrey Stephan Teehan affiliated with?
Dr. Teehan is affiliated with Lankenau Medical Center. Dmand AI links Dr. Teehan to 4 more hospitals.
What medical group is Dr. Geoffrey Stephan Teehan part of?
Dr. Teehan is linked to Kidney Care Specialists-Medical Associates of Drexel Hill. Dmand AI links Dr. Teehan to 1 more medical group.
Does Dr. Geoffrey Stephan Teehan accept Medicare?
Yes. CMS data shows Dr. Teehan billed Medicare for 1,435 services in 2024, and Dr. Teehan accepts Medicare assignment.
Does Dr. Geoffrey Stephan Teehan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Teehan as offering telehealth services.
How many Medicare patients does Dr. Geoffrey Stephan Teehan see?
CMS counts 393 Medicare patients who saw Dr. Teehan in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Geoffrey Stephan Teehan bill to Medicare?
In 2024, Dr. Teehan's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and dialysis (90935).
Where did Dr. Geoffrey Stephan Teehan go to medical school?
Dr. Teehan graduated from Jefferson Medical College of Thomas Jefferson University in 1998.
What drugs does Dr. Geoffrey Stephan Teehan prescribe most?
In 2024 Medicare Part D data, Dr. Teehan's most prescribed drugs by claims were Calcitriol, Amlodipine Besylate and Allopurinol.
Has Dr. Geoffrey Stephan Teehan received payments from drug or device companies?
CMS Open Payments shows $109,113 in general payments to Dr. Teehan from 28 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Geoffrey Stephan Teehan been practicing?
Dr. Teehan graduated from medical school in 1998, 28 years ago.
Does Dr. Geoffrey Stephan Teehan do research?
Dmand AI links 5 publications to Dr. Teehan, published from 2011 to 2016.
Who does Dr. Geoffrey Stephan Teehan publish with?
Dr. Teehan's most frequent co-authors are Brett C. Gilbert, DO (1 shared paper), Anupa Khastgir, MD (1 shared paper) and Arvind Madan, MD (1 shared paper).
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