Dr. Gregory Tiesi, MD
- Medicare services, 2024
- 677
- Medicare patients, 2024
- 221
- Part D claims, 2024
- 17
- Hospital affiliations
- 5
- Industry payments
- $2,015
- Practice address
- 360 Essex St, Hackensack, NJ 07601
- Practice phone
- Call (732) 807-0800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hmhmg Specialty Care
Hackensack, New Jersey
Find Dr. Tiesi'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. Gregory Tiesi is a general surgeon in Hackensack, New Jersey
Dr. Tiesi practices at Hmhmg Specialty Care in Hackensack, New Jersey.
Dr. Tiesi's NPI, 1942464003, was assigned on July 17, 2008. Dr. Tiesi holds Delaware license C1-0011730.
- NPI
- 1942464003NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315239811
- NPI enumeration date
- July 17, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (732) 807-0800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Tiesi practices at Hmhmg Specialty Care in Hackensack, New Jersey
Dr. Tiesi's primary practice is Hmhmg Specialty Care, at 360 Essex St, Hackensack, NJ 07601 in Bergen County. The practice phone is (732) 807-0800.
- Hmhmg Specialty Care360 Essex St, Hackensack, NJ 07601 · Bergen CountyPhone(732) 807-0800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Tiesi is affiliated with 10 sites of care and 2 medical groups
Dr. Tiesi's primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dr. Tiesi is also affiliated with Jersey Shore University Medical Center. The medical group on file is Hackensack Meridian Medical Group. Dmand AI also links Dr. Tiesi to 4 more hospitals, 2 group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Tiesi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tiesi practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hmhmg Specialty Care | Available with a free account |
| +9 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Tiesi is one of 675 general surgeons in New Jersey
Surgery is Dr. Tiesi's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tiesi is licensed in Delaware.
Specialties and state licenses
- Surgery, DelawarePrimary
General surgeons near Dr. Tiesi
Counts of general surgeons 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. Gregory Tiesi billed Medicare for 677 services in 2024
CMS data shows 677 Medicare services from Dr. Tiesi across 15 procedure codes in 2024, for 221 Medicare patients. Medicare paid $76,871 for them.
Dr. Tiesi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4492024: 58831%
- Surgery
- 2023: 232024: 49113%
- Imaging
- 2023: 412024: 402%
Where Dr. Tiesi's Medicare services took place, 2024
- In an office27741%
- In a facility40059%
Dr. Tiesi compared with the New Jersey median for general surgeons, 2024
- Dr. Tiesi
- New Jersey median
- Medicare services
- 677vs 1704.0 times
- Medicare patients
- 221vs 12577% above
Medians across 630 general surgeons in New Jersey with Dmand AI profiles that report each measure.
Dr. Tiesi'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. Tiesi and other general surgeons in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Tiesi treated 221 Medicare patients in 2024, average age 74
CMS counts 221 Medicare patients who saw Dr. Tiesi in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.76, 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. Tiesi's median patient age at 69, with 55% women.
Dr. Tiesi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tiesi's Medicare patients by sex, 2024
- Women11853%
- Men10347%
Chronic conditions among Dr. Tiesi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease44%
- Diabetes42%
- Anxiety35%
- Chronic kidney disease33%
- Mood disorders33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tiesi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Tiesi wrote 17 Medicare Part D claims in 2024
In 2024, Dr. Tiesi wrote 17 Medicare Part D claims for 12 patients. 82% of them were for generic drugs.
Dr. Tiesi's Part D claims by kind of drug, 2024
- Generic14 claims82%
- Brand-name and other3 claims18%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gregory Tiesi ranks in the 71st percentile for melanoma (skin cancer) excision in Medicare
Dr. Tiesi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of melanoma (skin cancer) excision by Dr. Tiesi, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Tiesi ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 71st percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gregory Tiesi received $2,015 in industry payments from 2016 to 2025
CMS Open Payments shows 42 general payments to Dr. Tiesi from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Ethicon Inc. paid the most, $356.
General payments to Dr. Tiesi by program year, 2016 to 2025
Companies that paid Dr. Tiesi the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregory Tiesi'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 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 (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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Gregory Tiesi
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. Gregory Tiesi's NPI number?
Dr. Gregory Tiesi's NPI number is 1942464003. It was assigned on July 17, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Tiesi?
Dr. Gregory Tiesi is a general surgeon in Hackensack, New Jersey. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Gregory Tiesi practice?
Dr. Tiesi practices at 360 Essex St, Hackensack, NJ 07601. Dr. Tiesi's primary practice is Hmhmg Specialty Care in Hackensack, New Jersey. Dmand AI also links Dr. Tiesi to 4 hospitals, 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Dr. Gregory Tiesi's office phone number?
The practice phone on file for Dr. Tiesi is (732) 807-0800.
What is Dr. Gregory Tiesi's medical license number?
Dr. Tiesi holds Delaware license C1-0011730.
Which hospitals is Dr. Gregory Tiesi affiliated with?
Dr. Tiesi is affiliated with Jersey Shore University Medical Center. Dmand AI links Dr. Tiesi to 4 more hospitals.
What medical group is Dr. Gregory Tiesi part of?
Dr. Tiesi is linked to Hackensack Meridian Medical Group. Dmand AI links Dr. Tiesi to 1 more medical group.
Does Dr. Gregory Tiesi accept Medicare?
Yes. CMS data shows Dr. Tiesi billed Medicare for 677 services in 2024, and Dr. Tiesi accepts Medicare assignment.
How many Medicare patients does Dr. Gregory Tiesi see?
CMS counts 221 Medicare patients who saw Dr. Tiesi in 2024, with an average age of 74.
What services does Dr. Gregory Tiesi bill to Medicare?
In 2024, Dr. Tiesi's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99215) and office visit, new patient (99205).
Has Dr. Gregory Tiesi received payments from drug or device companies?
CMS Open Payments shows $2,015 in general payments to Dr. Tiesi from 28 companies from 2016 to 2025. The largest total came from Ethicon Inc.
How long has Dr. Gregory Tiesi been practicing?
Dr. Tiesi graduated from medical school in 2007, 19 years ago.
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