Dr. Gregg P. Sydow, MD

  • Buffalo, NY
  • Diagnostic radiologist
NPI1619157609PAC ID6002057296
Medicare services, 2024
1,706
Medicare patients, 2024
1,339
Hospital affiliations
10
Medical groups
30
State license
1
Practice address
100 High St., Buffalo, NY 14203
Practice phone
Call (716) 859-2556
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kaleida Health - Unit

Acute Care Hospital-Unit · Buffalo, New York

See all 54 affiliations

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Dr. Gregg P. Sydow is a diagnostic radiologist in Buffalo, New York

Dr. Sydow practices at Kaleida Health - Unit in Buffalo, New York.

Dr. Sydow's NPI, 1619157609, was assigned on November 7, 2007. Dr. Sydow graduated from Southern Illinois University School of Medicine in 2007. Dr. Sydow holds Arizona license 47172.

NPI and contact details
Medicare PAC ID
6002057296
NPI enumeration date
November 7, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(716) 859-2556
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
45
Medical school graduation
2007

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gregg P. Sydow practices at Kaleida Health - Unit in Buffalo, New York

Dr. Sydow's primary practice is Kaleida Health - Unit, at 100 High St., Buffalo, NY 14203 in Erie County. The practice phone is (716) 859-2556.

  • Kaleida Health - Unit
    100 High St., Buffalo, NY 14203 · Erie CountyPhone(716) 859-2556

Source: Dmand AI Affiliation Data

Dr. Gregg P. Sydow is affiliated with 24 sites of care and 30 medical groups

Dr. Sydow's primary practice is Kaleida Health - Unit in Buffalo, New York. Dr. Sydow is also affiliated with Buffalo General Medical Center/Gates Vascular Institute. The medical group on file is Cayuga Medical Associates. Dmand AI also links Dr. Sydow to 8 more hospitals, 29 medical groups and 14 group practices and clinics, each named with a free account.

See all 54 affiliations for Dr. Sydow

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Gregg P. Sydow's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sydow practices, 24 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaleida Health - UnitAvailable with a free account
+23 more sites and 29 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gregg P. Sydow is one of 2,697 diagnostic radiologists in New York

Diagnostic radiology is Dr. Sydow's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Sydow is licensed in Arizona.

Specialties and state licenses

  • Diagnostic radiology, ArizonaPrimaryLicense 47172 · taxonomy 2085R0202X

Diagnostic radiologists near Dr. Sydow

Counts of diagnostic radiologists 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. Gregg P. Sydow billed Medicare for 1,706 services in 2024

CMS data shows 1,706 Medicare services from Dr. Sydow across 27 procedure codes in 2024, for 1,339 Medicare patients. Medicare paid $67,809 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20241,706
Medicare patients1,339
Paid by Medicare$67,809
Procedure codes27

Dr. Sydow's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 2,2892024: 1,67727%
Tests and treatments
2023: 702024: 2959%

Dr. Sydow compared with the New York median for diagnostic radiologists, 2024

  • Dr. Sydow
  • New York median
Medicare services
1,706vs 2,41429% below
Medicare patients
1,339vs 1,15916% above

Medians across 2,610 diagnostic radiologists in New York with Dmand AI profiles that report each measure.

Dr. Sydow'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.

See all procedures by Dr. Sydow

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gregg P. Sydow treated 1,339 Medicare patients in 2024, average age 75

CMS counts 1,339 Medicare patients who saw Dr. Sydow in 2024. The largest group is 75 to 84, with 451 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.90, 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. Sydow's median patient age at 49, with 56% women.

Medicare patients, 20241,339
Average age75
Average risk score1.90
Also on Medicaid30%

Dr. Sydow's Medicare patients by age, 2024

Dr. Sydow's Medicare patients by sex, 2024

  • Women70252%
  • Men63748%

Chronic conditions among Dr. Sydow's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Ischemic heart disease42%
  5. Diabetes39%
  6. Anxiety38%
  7. Mood disorders37%
  8. Chronic kidney disease36%

Share of Medicare patients with each condition. A patient can have several.

Dr. Sydow's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 49

Patient panel by sex, all payers

  • Women56%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. Gregg P. Sydow takes part in Medicare

Dr. Sydow accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Gregg P. Sydow graduated from Southern Illinois University School of Medicine

Dr. Sydow graduated from Southern Illinois University School of Medicine in 2007.

  1. Medical schoolSouthern Illinois University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Gregg P. Sydow's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gregg P. Sydow

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. Gregg P. Sydow's NPI number?

Dr. Gregg P. Sydow's NPI number is 1619157609. It was assigned on November 7, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregg P. Sydow?

Dr. Gregg P. Sydow is a diagnostic radiologist in Buffalo, New York. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Dr. Gregg P. Sydow practice?

Dr. Sydow practices at 100 High St., Buffalo, NY 14203. Dr. Sydow's primary practice is Kaleida Health - Unit in Buffalo, New York. Dmand AI also links Dr. Sydow to 8 hospitals, 29 medical groups and 14 group practices and clinics.

What is Dr. Gregg P. Sydow's office phone number?

The practice phone on file for Dr. Sydow is (716) 859-2556.

What is Dr. Gregg P. Sydow's medical license number?

Dr. Sydow holds Arizona license 47172.

Which hospitals is Dr. Gregg P. Sydow affiliated with?

Dr. Sydow is affiliated with Buffalo General Medical Center/Gates Vascular Institute. Dmand AI links Dr. Sydow to 9 more hospitals.

What medical group is Dr. Gregg P. Sydow part of?

Dr. Sydow is linked to Cayuga Medical Associates. Dmand AI links Dr. Sydow to 29 more medical groups.

Does Dr. Gregg P. Sydow accept Medicare?

Yes. CMS data shows Dr. Sydow billed Medicare for 1,706 services in 2024, and Dr. Sydow accepts Medicare assignment.

How many Medicare patients does Dr. Gregg P. Sydow see?

CMS counts 1,339 Medicare patients who saw Dr. Sydow in 2024, with an average age of 75.

What services does Dr. Gregg P. Sydow bill to Medicare?

In 2024, Dr. Sydow's most billed Medicare services were diagnostic imaging (74177), diagnostic imaging (71045) and diagnostic imaging (70450).

Where did Dr. Gregg P. Sydow go to medical school?

Dr. Sydow graduated from Southern Illinois University School of Medicine in 2007.

How long has Dr. Gregg P. Sydow been practicing?

Dr. Sydow graduated from medical school in 2007, 19 years ago.

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