Dr. Constantine M. Chaknos, MD
- Medicare services, 2024
- 999
- Medicare patients, 2024
- 389
- Part D claims, 2024
- 1,796
- Hospital affiliations
- 5
- Industry payments
- $29
- Practice address
- 3400 Spruce St, Philadelphia, PA 19104
- Practice phone
- Call (215) 662-6289
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chaknos' 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. Constantine M. Chaknos is a nephrologist in Philadelphia, Pennsylvania
Dr. Chaknos practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania, part of University of Pennsylvania.
Dr. Chaknos' NPI, 1588870901, was assigned on May 15, 2007. Dr. Chaknos graduated from Jefferson Medical College of Thomas Jefferson University in 2006. Dr. Chaknos holds Pennsylvania license MD442952.
- NPI
- 1588870901NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901075290
- NPI enumeration date
- May 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (215) 662-6289
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Constantine M. Chaknos practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania
Dr. Chaknos' primary practice is Hospital of the University of Pennsylvania, at 3400 Spruce St, Philadelphia, PA 19104 in Philadelphia County. The practice phone is (215) 662-6289.
- Hospital of the University of Pennsylvania3400 Spruce St, Philadelphia, PA 19104 · Philadelphia CountyPhone(215) 662-6289
Source: Dmand AI Affiliation Data
Dr. Constantine M. Chaknos is affiliated with 7 sites of care and 1 medical group
Dr. Chaknos' primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania, part of University of Pennsylvania. Dr. Chaknos is also affiliated with Penn Presbyterian Medical Center. The medical group on file is Penn Medicine Lancaster General Health. Dmand AI also links Dr. Chaknos to 3 more hospitals, 1 dialysis center and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Constantine M. Chaknos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaknos practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital of the University of Pennsylvania | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Pennsylvania and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Constantine M. Chaknos is one of 552 nephrologists in Pennsylvania
Nephrology is Dr. Chaknos' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Chaknos' licenses on file in 2 states: Pennsylvania and Massachusetts.
Specialties and state licenses
- Nephrology, PennsylvaniaPrimary
- Internal medicine, Massachusetts
Nephrologists near Dr. Chaknos
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. Constantine M. Chaknos billed Medicare for 999 services in 2024
CMS data shows 999 Medicare services from Dr. Chaknos across 7 procedure codes in 2024, for 389 Medicare patients. Medicare paid $69,468 for them.
Dr. Chaknos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5252024: 44515%
- Other services
- 2023: 02024: 420
- Tests and treatments
- 2023: 2292024: 13441%
Where Dr. Chaknos' Medicare services took place, 2024
- In an office85285%
- In a facility14715%
Dr. Chaknos compared with the Pennsylvania median for nephrologists, 2024
- Dr. Chaknos
- Pennsylvania median
- Medicare services
- 999vs 77229% above
- Medicare patients
- 389vs 27541% above
- Part D claims
- 1,528vs 5522.8 times
Medians across 548 nephrologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Chaknos' 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. Chaknos?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chaknos and other nephrologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Constantine M. Chaknos treated 389 Medicare patients in 2024, average age 72
CMS counts 389 Medicare patients who saw Dr. Chaknos in 2024. The largest group is 65 to 74, with 163 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 9% are also on Medicaid. Their average risk score is 2.49, 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. Chaknos' median patient age at 70, with 41% women.
Dr. Chaknos' Medicare patients by age, 2024
Dr. Chaknos' Medicare patients by sex, 2024
- Women15640%
- Men23360%
Chronic conditions among Dr. Chaknos' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes51%
- Arthritis42%
- Ischemic heart disease42%
- Heart failure27%
- Cancer25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chaknos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Constantine M. Chaknos wrote 1,796 Medicare Part D claims in 2024
In 2024, Dr. Chaknos wrote 1,796 Medicare Part D claims for 279 patients. 81% of them were for generic drugs. CMS names the drug for 1,528 of them, across 40 drugs with 11 or more claims each, at $250,787 in total drug cost. In 2023, CMS named 1,519 claims across 39 drugs.
Dr. Chaknos' Part D claims by kind of drug, 2024
- Generic1,454 claims81%
- Brand-name324 claims18%
- Other18 claims1%
Dr. Chaknos' 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. Chaknos' Part D claims, 2024
- Antibiotics1%12 of 1,796 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: 1,5192024: 1,5281%
Drugs named by CMS: 40 in 2024, 39 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. Constantine M. Chaknos offers telehealth to Medicare patients
Dr. Chaknos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chaknos as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Constantine M. Chaknos received $29 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Chaknos from 3 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 95% of the total. Alnylam Pharmaceuticals Inc. paid the most, $14.
General payments to Dr. Chaknos by program year, 2016 to 2023
General payments to Dr. Chaknos by kind, 2016 to 2023
- Food and beverage$2795%
- Education$15%
Companies that paid Dr. Chaknos the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Constantine M. Chaknos graduated from Jefferson Medical College of Thomas Jefferson University
Dr. Chaknos graduated from Jefferson Medical College of Thomas Jefferson University in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Constantine M. Chaknos'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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. Constantine M. Chaknos
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. Constantine M. Chaknos' NPI number?
Dr. Constantine M. Chaknos' NPI number is 1588870901. It was assigned on May 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Constantine M. Chaknos?
Dr. Constantine M. Chaknos is a nephrologist in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Constantine M. Chaknos practice?
Dr. Chaknos practices at 3400 Spruce St, Philadelphia, PA 19104. Dr. Chaknos' primary practice is Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania, part of University of Pennsylvania. Dmand AI also links Dr. Chaknos to 3 hospitals, 1 dialysis center and 1 group practice or clinic.
What is Dr. Constantine M. Chaknos' office phone number?
The practice phone on file for Dr. Chaknos is (215) 662-6289.
What is Dr. Constantine M. Chaknos' medical license number?
Dr. Chaknos holds Pennsylvania license MD442952, one of the licenses on file in 2 states.
Which states has Dr. Constantine M. Chaknos been licensed in?
Dmand AI has state licenses on file for Dr. Chaknos in Pennsylvania and Massachusetts.
Which hospitals is Dr. Constantine M. Chaknos affiliated with?
Dr. Chaknos practices at Hospital of the University of Pennsylvania in Philadelphia, Pennsylvania. Dr. Chaknos is also affiliated with Penn Presbyterian Medical Center. Dmand AI links Dr. Chaknos to 3 more hospitals.
What medical group is Dr. Constantine M. Chaknos part of?
Dr. Chaknos is linked to Penn Medicine Lancaster General Health.
Does Dr. Constantine M. Chaknos accept Medicare?
Yes. CMS data shows Dr. Chaknos billed Medicare for 999 services in 2024, and Dr. Chaknos accepts Medicare assignment.
Does Dr. Constantine M. Chaknos offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chaknos as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Constantine M. Chaknos see?
CMS counts 389 Medicare patients who saw Dr. Chaknos in 2024, with an average age of 72.
What services does Dr. Constantine M. Chaknos bill to Medicare?
In 2024, Dr. Chaknos' most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and dialysis (90960).
Where did Dr. Constantine M. Chaknos go to medical school?
Dr. Chaknos graduated from Jefferson Medical College of Thomas Jefferson University in 2006.
What drugs does Dr. Constantine M. Chaknos prescribe most?
In 2024 Medicare Part D data, Dr. Chaknos' most prescribed drugs by claims were Amlodipine Besylate, Calcitriol and Potassium Citrate ER.
Has Dr. Constantine M. Chaknos received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Dr. Chaknos from 3 companies from 2016 to 2023. The largest total came from Alnylam Pharmaceuticals Inc.
How long has Dr. Constantine M. Chaknos been practicing?
Dr. Chaknos graduated from medical school in 2006, 20 years ago.
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