Dr. Joshua Laurence Tarkan, MD
- Medicare services, 2024
- 13,299
- Medicare patients, 2024
- 913
- Part D claims, 2024
- 2,355
- Hospital affiliations
- 5
- Industry payments
- $713
- Practice address
- 575 Turnpike St, North Andover, MA 01845
- Practice phone
- Call (978) 465-7030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fresenius Medical Care of Newburyport
North Andover, Massachusetts
Find Dr. Tarkan'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. Joshua Laurence Tarkan is a nephrologist in North Andover, Massachusetts
Dr. Tarkan practices at Fresenius Medical Care of Newburyport in North Andover, Massachusetts.
Dr. Tarkan's NPI, 1922104884, was assigned on September 16, 2006. Dr. Tarkan graduated from Emory University School of Medicine in 2001. Dr. Tarkan holds Massachusetts license 220460.
- NPI
- 1922104884NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799755252
- NPI enumeration date
- September 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (978) 465-7030
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joshua Laurence Tarkan practices at Fresenius Medical Care of Newburyport in North Andover, Massachusetts
Dr. Tarkan's primary practice is Fresenius Medical Care of Newburyport, at 575 Turnpike St, North Andover, MA 01845 in Essex County. The practice phone is (978) 465-7030.
- Fresenius Medical Care of Newburyport575 Turnpike St, North Andover, MA 01845 · Essex CountyPhone(978) 465-7030
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joshua Laurence Tarkan is affiliated with 9 sites of care and 2 medical groups
Dr. Tarkan's primary practice is Fresenius Medical Care of Newburyport in North Andover, Massachusetts. Dr. Tarkan is also affiliated with Massachusetts General Hospital. The medical group on file is Mass General Brigham (formerly North Shore Physicians Group). Dmand AI also links Dr. Tarkan to 4 more hospitals, 2 group practices and clinics, 1 dialysis center and 1 medical group, 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. Joshua Laurence Tarkan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tarkan practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fresenius Medical Care of Newburyport | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joshua Laurence Tarkan is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Tarkan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Tarkan is licensed in Massachusetts.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
Nephrologists near Dr. Tarkan
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. Joshua Laurence Tarkan billed Medicare for 13,299 services in 2024
CMS data shows 13,299 Medicare services from Dr. Tarkan across 16 procedure codes in 2024, for 913 Medicare patients. Medicare paid $466,024 for them.
Dr. Tarkan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 3,1002024: 7,411139%
- Office and hospital visits
- 2023: 3,4632024: 3,1988%
- Drugs given in the office
- 2023: 5602024: 1,860232%
- Tests and treatments
- 2023: 6182024: 74120%
- Lab and pathology
- 2023: 962024: 897%
Where Dr. Tarkan's Medicare services took place, 2024
- In an office11,27285%
- In a facility2,02715%
Dr. Tarkan compared with the Massachusetts median for nephrologists, 2024
- Dr. Tarkan
- Massachusetts median
- Medicare services
- 13,299vs 70119.0 times
- Medicare patients
- 913vs 2823.2 times
- Part D claims
- 2,172vs 4714.6 times
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Tarkan'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. Tarkan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tarkan and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joshua Laurence Tarkan treated 913 Medicare patients in 2024, average age 77
CMS counts 913 Medicare patients who saw Dr. Tarkan in 2024. The largest group is 75 to 84, with 411 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 19% are also on Medicaid. Their average risk score is 2.54, 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. Tarkan's median patient age at 77, with 43% women.
Dr. Tarkan's Medicare patients by age, 2024
Dr. Tarkan's Medicare patients by sex, 2024
- Women41445%
- Men49955%
Chronic conditions among Dr. Tarkan's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease51%
- Diabetes50%
- Heart failure41%
- Atrial fibrillation39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tarkan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joshua Laurence Tarkan wrote 2,355 Medicare Part D claims in 2024
In 2024, Dr. Tarkan wrote 2,355 Medicare Part D claims for 476 patients. 92% of them were for generic drugs. CMS names the drug for 2,172 of them, across 36 drugs with 11 or more claims each, at $331,280 in total drug cost. In 2023, CMS named 1,966 claims across 33 drugs.
Dr. Tarkan's Part D claims by kind of drug, 2024
- Generic2,171 claims92%
- Brand-name184 claims8%
Dr. Tarkan'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. Tarkan's Part D claims, 2024
- Antibiotics1%12 of 2,355 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: 1,9662024: 2,17210%
Drugs named by CMS: 36 in 2024, 33 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. Joshua Laurence Tarkan offers telehealth to Medicare patients
Dr. Tarkan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tarkan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joshua Laurence Tarkan received $713 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Tarkan from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 65% of the total. Relypsa, Inc. paid the most, $200.
General payments to Dr. Tarkan by program year, 2016 to 2025
General payments to Dr. Tarkan by kind, 2016 to 2025
- Food and beverage$46665%
- Speaker and faculty fees$20028%
- Education$477%
Companies that paid Dr. Tarkan 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. Joshua Laurence Tarkan graduated from Emory University School of Medicine
Dr. Tarkan graduated from Emory University School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joshua Laurence Tarkan'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. Joshua Laurence Tarkan
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. Joshua Laurence Tarkan's NPI number?
Dr. Joshua Laurence Tarkan's NPI number is 1922104884. It was assigned on September 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joshua Laurence Tarkan?
Dr. Joshua Laurence Tarkan is a nephrologist in North Andover, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Joshua Laurence Tarkan practice?
Dr. Tarkan practices at 575 Turnpike St, North Andover, MA 01845. Dr. Tarkan's primary practice is Fresenius Medical Care of Newburyport in North Andover, Massachusetts. Dmand AI also links Dr. Tarkan to 4 hospitals, 2 group practices and clinics, 1 dialysis center and 1 medical group.
What is Dr. Joshua Laurence Tarkan's office phone number?
The practice phone on file for Dr. Tarkan is (978) 465-7030.
What is Dr. Joshua Laurence Tarkan's medical license number?
Dr. Tarkan holds Massachusetts license 220460.
Which hospitals is Dr. Joshua Laurence Tarkan affiliated with?
Dr. Tarkan is affiliated with Massachusetts General Hospital. Dmand AI links Dr. Tarkan to 4 more hospitals.
What medical group is Dr. Joshua Laurence Tarkan part of?
Dr. Tarkan is linked to Mass General Brigham (formerly North Shore Physicians Group). Dmand AI links Dr. Tarkan to 1 more medical group.
Does Dr. Joshua Laurence Tarkan accept Medicare?
Yes. CMS data shows Dr. Tarkan billed Medicare for 13,299 services in 2024, and Dr. Tarkan accepts Medicare assignment.
Does Dr. Joshua Laurence Tarkan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tarkan as offering telehealth services.
How many Medicare patients does Dr. Joshua Laurence Tarkan see?
CMS counts 913 Medicare patients who saw Dr. Tarkan in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Joshua Laurence Tarkan bill to Medicare?
In 2024, Dr. Tarkan's most billed Medicare services were medicare temporary code (Q5106), injected or infused drug (J0885) and hospital inpatient care (99232).
Where did Dr. Joshua Laurence Tarkan go to medical school?
Dr. Tarkan graduated from Emory University School of Medicine in 2001.
What drugs does Dr. Joshua Laurence Tarkan prescribe most?
In 2024 Medicare Part D data, Dr. Tarkan's most prescribed drugs by claims were Calcitriol, Furosemide and Lisinopril.
Has Dr. Joshua Laurence Tarkan received payments from drug or device companies?
CMS Open Payments shows $713 in general payments to Dr. Tarkan from 12 companies from 2016 to 2025. The largest total came from Relypsa, Inc.
How long has Dr. Joshua Laurence Tarkan been practicing?
Dr. Tarkan graduated from medical school in 2001, 25 years ago.
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