Marc J. Siebert, NP
- Medicare patients, 2024
- 40
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Medical groups
- 5
- State license
- 1
- Practice address
- 462 Grider Street, Buffalo, NY 14215
- Practice phone
- Call (716) 898-3936
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Marc Siebert'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.
Marc J. Siebert is a nurse practitioner in Buffalo, New York
Marc Siebert practices at Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center.
Marc Siebert's NPI, 1932536240, was assigned on October 1, 2013. Marc Siebert holds New York license F306570.
- NPI
- 1932536240NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577879204
- NPI enumeration date
- October 1, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 898-3936
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Marc J. Siebert practices at Erie County Medical Center in Buffalo, New York
Marc Siebert's primary practice is Erie County Medical Center, at 462 Grider Street, Buffalo, NY 14215 in Erie County. The practice phone is (716) 898-3936.
- Erie County Medical Center462 Grider Street, Buffalo, NY 14215 · Erie CountyPhone(716) 898-3936
Source: Dmand AI Affiliation Data
Marc J. Siebert is affiliated with 2 sites of care and 5 medical groups
Marc Siebert's primary practice is Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center. The medical group on file is Kaleida Health. Dmand AI also links Marc Siebert to 4 more medical groups and 1 dialysis center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Marc J. Siebert's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Marc Siebert practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Erie County Medical Center | Available with a free account |
| +1 more site and 4 medical groups | 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 Erie County Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Marc J. Siebert is one of 1,991 nurse practitioners in New York
Nurse practitioner is Marc Siebert's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Marc Siebert is licensed in New York.
Specialties and state licenses
- Nurse practitioner, New YorkPrimary
Nurse practitioners near Marc Siebert
Counts of nurse practitioners 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
Marc J. Siebert treated 40 Medicare patients in 2024, average age 65
CMS counts 40 Medicare patients who saw Marc Siebert in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 68% are also on Medicaid. Their average risk score is 4.30, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Marc Siebert's median patient age at 68, with 47% women.
Marc Siebert's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Marc Siebert's Medicare patients by sex, 2024
- Women1333%
- Men2768%
Chronic conditions among Marc Siebert's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders63%
- Ischemic heart disease60%
- Depression58%
- Diabetes58%
- Atrial fibrillation55%
- Arthritis48%
Share of Medicare patients with each condition. A patient can have several.
Marc Siebert's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Marc J. Siebert scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Marc Siebert for performance year 2024, reported as part of a group. Marc Siebert accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Marc Siebert's MIPS scores, performance year 2024
- 91of 100Final score
- 80.2of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Sources for Marc J. Siebert'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 patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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)Clinician Public Reporting: Overall MIPS Performance (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 Marc J. Siebert
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Marc J. Siebert's NPI number?
Marc J. Siebert's NPI number is 1932536240. It was assigned on October 1, 2013, and it is active in the NPI Registry.
What does Marc J. Siebert specialize in?
Marc J. Siebert is a nurse practitioner in Buffalo, New York. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Marc J. Siebert practice?
Marc Siebert practices at 462 Grider Street, Buffalo, NY 14215. Marc Siebert's primary practice is Erie County Medical Center in Buffalo, New York, part of Erie County Medical Center. Dmand AI also links Marc Siebert to 4 medical groups and 1 dialysis center.
What is Marc J. Siebert's office phone number?
The practice phone on file for Marc Siebert is (716) 898-3936.
What is Marc J. Siebert's medical license number?
Marc Siebert holds New York license F306570.
Which hospitals is Marc J. Siebert affiliated with?
Marc Siebert practices at Erie County Medical Center in Buffalo, New York.
What medical group is Marc J. Siebert part of?
Marc Siebert is linked to Kaleida Health. Dmand AI links Marc Siebert to 4 more medical groups.
Does Marc J. Siebert accept Medicare?
Yes. CMS lists Marc Siebert as accepting Medicare assignment.
What is Marc J. Siebert's MIPS score?
Marc Siebert's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Marc J. Siebert see?
CMS counts 40 Medicare patients who saw Marc Siebert in 2024, with an average age of 65.
How long has Marc J. Siebert been practicing?
Marc Siebert graduated from medical school in 2013, 13 years ago.
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