Dr. Charles G. Bleecher, MD
- Medicare services, 2024
- 17,950
- Medicare patients, 2024
- 516
- Part D claims, 2024
- 4,440
- Hospital affiliations
- 1
- Industry payments
- $1,637
- Practice address
- 1 Research Rd, Ridge, NY 11961
- Practice phone
- Call (631) 751-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Port Jefferson Station Medical Oncology
Multi-specialty group site · Ridge, New York
Find Dr. Bleecher'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. Charles G. Bleecher is an internist in Ridge, New York
Dr. Bleecher practices at Port Jefferson Station Medical Oncology in Ridge, New York.
Dr. Bleecher's NPI, 1134117989, was assigned on October 6, 2005. Dr. Bleecher graduated from SUNY Upstate Medical University in 1986. Dr. Bleecher holds New York license 171781.
- NPI
- 1134117989NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476657776
- NPI enumeration date
- October 6, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 751-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles G. Bleecher practices at Port Jefferson Station Medical Oncology in Ridge, New York
Dr. Bleecher's primary practice is Port Jefferson Station Medical Oncology, at 1 Research Rd, Ridge, NY 11961. The practice phone is (631) 751-3000.
- Port Jefferson Station Medical Oncology1 Research Rd, Ridge, NY 11961Phone(631) 751-3000
Source: Dmand AI Affiliation Data
Dr. Charles G. Bleecher is affiliated with 6 sites of care and 2 medical groups
Dr. Bleecher's primary practice is Port Jefferson Station Medical Oncology in Ridge, New York. Dr. Bleecher is also affiliated with Mather Hospital. The medical group on file is New York Cancer & Blood Specialists. Dmand AI also links Dr. Bleecher to 3 more home health agencies, 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Charles G. Bleecher's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bleecher practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Port Jefferson Station Medical Oncology | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles G. Bleecher is one of 9,643 internists in New York
Internal medicine is Dr. Bleecher's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Bleecher is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Bleecher
Counts of internists 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. Charles G. Bleecher billed Medicare for 17,950 services in 2024
CMS data shows 17,950 Medicare services from Dr. Bleecher across 51 procedure codes in 2024, for 516 Medicare patients. Medicare paid $472,800 for them. Every service was in an office.
Dr. Bleecher's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 7,9492024: 12,64859%
- Office and hospital visits
- 2023: 2,0662024: 2,27310%
- Surgery
- 2023: 8582024: 1,03120%
- Tests and treatments
- 2023: 7512024: 1,01735%
- Other services
- 2023: 5922024: 98166%
Dr. Bleecher compared with the New York median for internists, 2024
- Dr. Bleecher
- New York median
- Medicare services
- 17,950vs 42642.1 times
- Medicare patients
- 516vs 1583.3 times
- Part D claims
- 3,951vs 6226.4 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Bleecher'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. Bleecher?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bleecher and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charles G. Bleecher treated 516 Medicare patients in 2024, average age 74
CMS counts 516 Medicare patients who saw Dr. Bleecher in 2024. The largest group is 65 to 74, with 214 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bleecher's median patient age at 58, with 53% women.
Dr. Bleecher's Medicare patients by age, 2024
Dr. Bleecher's Medicare patients by sex, 2024
- Women27754%
- Men23946%
Chronic conditions among Dr. Bleecher's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease32%
- Chronic kidney disease31%
- Diabetes31%
- Anxiety25%
- Cancer23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bleecher's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women53%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charles G. Bleecher wrote 4,440 Medicare Part D claims in 2024
In 2024, Dr. Bleecher wrote 4,440 Medicare Part D claims for 442 patients. 92% of them were for generic drugs. CMS names the drug for 3,951 of them, across 75 drugs with 11 or more claims each, at $244,185 in total drug cost. In 2023, CMS named 3,690 claims across 69 drugs.
Dr. Bleecher's Part D claims by kind of drug, 2024
- Generic4,081 claims92%
- Brand-name and other359 claims8%
Dr. Bleecher'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. Bleecher's Part D claims, 2024
- Antibiotics4%158 of 4,440 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: 3,6902024: 3,9517%
Drugs named by CMS: 75 in 2024, 69 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. Charles G. Bleecher offers telehealth to Medicare patients
Dr. Bleecher accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Bleecher as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Charles G. Bleecher received $1,637 in industry payments from 2016 to 2025
CMS Open Payments shows 37 general payments to Dr. Bleecher from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $266.
General payments to Dr. Bleecher by program year, 2016 to 2025
Companies that paid Dr. Bleecher 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. Charles G. Bleecher graduated from SUNY Upstate Medical University
Dr. Bleecher graduated from SUNY Upstate Medical University in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charles G. Bleecher'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 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. Charles G. Bleecher
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. Charles G. Bleecher's NPI number?
Dr. Charles G. Bleecher's NPI number is 1134117989. It was assigned on October 6, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles G. Bleecher?
Dr. Charles G. Bleecher is an internist in Ridge, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Charles G. Bleecher practice?
Dr. Bleecher practices at 1 Research Rd, Ridge, NY 11961. Dr. Bleecher's primary practice is Port Jefferson Station Medical Oncology in Ridge, New York. Dmand AI also links Dr. Bleecher to 3 home health agencies, 1 group practice or clinic and 1 medical group.
What is Dr. Charles G. Bleecher's office phone number?
The practice phone on file for Dr. Bleecher is (631) 751-3000.
What is Dr. Charles G. Bleecher's medical license number?
Dr. Bleecher holds New York license 171781.
Which hospitals is Dr. Charles G. Bleecher affiliated with?
Dr. Bleecher is affiliated with Mather Hospital.
What medical group is Dr. Charles G. Bleecher part of?
Dr. Bleecher is linked to New York Cancer & Blood Specialists. Dmand AI links Dr. Bleecher to 1 more medical group.
Does Dr. Charles G. Bleecher accept Medicare?
Yes. CMS data shows Dr. Bleecher billed Medicare for 17,950 services in 2024, and Dr. Bleecher accepts Medicare assignment.
Does Dr. Charles G. Bleecher offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Bleecher as offering telehealth services.
How many Medicare patients does Dr. Charles G. Bleecher see?
CMS counts 516 Medicare patients who saw Dr. Bleecher in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Charles G. Bleecher bill to Medicare?
In 2024, Dr. Bleecher's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and lab and pathology test (85025).
Where did Dr. Charles G. Bleecher go to medical school?
Dr. Bleecher graduated from SUNY Upstate Medical University in 1986.
What drugs does Dr. Charles G. Bleecher prescribe most?
In 2024 Medicare Part D data, Dr. Bleecher's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Charles G. Bleecher received payments from drug or device companies?
CMS Open Payments shows $1,637 in general payments to Dr. Bleecher from 16 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Charles G. Bleecher been practicing?
Dr. Bleecher graduated from medical school in 1986, 40 years ago.
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