Dr. Gregory A. Zittel, MD
- Medicare services, 2024
- 233
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 467
- MIPS score, 2024
- 80
- Hospital affiliations
- 3
- Practice address
- 719 Rodel Cv, Lake Mary, FL 32746
- Practice phone
- Call (321) 841-2452
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Orlando Health Medical Group Inc
Lake Mary, Florida
Find Dr. Zittel's professional email, personal email and mobile number
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Dr. Gregory A. Zittel is an OB-GYN in Lake Mary, Florida
Dr. Zittel practices at Orlando Health Medical Group Inc in Lake Mary, Florida.
Dr. Zittel's NPI, 1003807082, was assigned on October 31, 2005. Dr. Zittel graduated from State University of New York at Buffalo School of Medicine in 1991. Dr. Zittel holds Florida license ME67849.
- NPI
- 1003807082NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416092267
- NPI enumeration date
- October 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (321) 841-2452
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory A. Zittel practices at Orlando Health Medical Group Inc in Lake Mary, Florida
Dr. Zittel's primary practice is Orlando Health Medical Group Inc, at 719 Rodel Cv, Lake Mary, FL 32746 in Seminole County. The practice phone is (321) 841-2452.
- Orlando Health Medical Group Inc719 Rodel Cv, Lake Mary, FL 32746 · Seminole CountyPhone(321) 841-2452
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory A. Zittel is affiliated with 5 sites of care and 1 medical group
Dr. Zittel's primary practice is Orlando Health Medical Group Inc in Lake Mary, Florida. Dr. Zittel is also affiliated with AdventHealth Orlando. The medical group on file is Orlando Health Medical Group. Dmand AI also links Dr. Zittel to 2 more hospitals and 1 group practice or clinic, 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 A. Zittel's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zittel practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orlando Health Medical Group Inc | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory A. Zittel is one of 2,315 OB-GYNs in Florida
Obstetrics and gynecology is Dr. Zittel's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Zittel is licensed in Florida.
Specialties and state licenses
- Obstetrics and gynecology, FloridaPrimary
OB-GYNs near Dr. Zittel
Counts of OB-GYNs 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 A. Zittel billed Medicare for 233 services in 2024
CMS data shows 233 Medicare services from Dr. Zittel across 4 procedure codes in 2024, for 135 Medicare patients. Medicare paid $11,957 for them. Every service was in an office.
Dr. Zittel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1712024: 1672%
- Office and hospital visits
- 2023: 622024: 666%
- Imaging
- 2023: 322024: 0100%
Dr. Zittel compared with the Florida median for OB-GYNs, 2024
- Dr. Zittel
- Florida median
- Medicare services
- 233vs 663.5 times
- Medicare patients
- 135vs 502.7 times
- Part D claims
- 385vs 3710.4 times
Medians across 1,909 OB-GYNs in Florida with Dmand AI profiles that report each measure.
Dr. Zittel'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory A. Zittel treated 135 Medicare patients in 2024, average age 72
CMS counts 135 Medicare patients who saw Dr. Zittel in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high cholesterol, and 63% have high blood pressure. Their average risk score is 0.71, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zittel's median patient age at 52, with 100% women.
Dr. Zittel's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Zittel's Medicare patients, 2024
- High cholesterol75%
- High blood pressure63%
- Arthritis49%
- Anxiety34%
- Osteoporosis24%
- Ischemic heart disease23%
- Chronic kidney disease19%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zittel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory A. Zittel wrote 467 Medicare Part D claims in 2024
In 2024, Dr. Zittel wrote 467 Medicare Part D claims for 137 patients. 88% of them were for generic drugs. CMS names the drug for 385 of them, across 11 drugs with 11 or more claims each, at $23,547 in total drug cost. In 2023, CMS named 316 claims across 10 drugs.
Dr. Zittel's Part D claims by kind of drug, 2024
- Generic412 claims88%
- Brand-name55 claims12%
Dr. Zittel'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. Zittel's Part D claims, 2024
- Antibiotics7%32 of 467 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: 3162024: 38522%
Drugs named by CMS: 11 in 2024, 10 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. Gregory A. Zittel scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Zittel for performance year 2024, reported as part of a group. Dr. Zittel accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zittel as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Zittel's MIPS scores, performance year 2024
- 80of 100Final score
- 61.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 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
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Dr. Gregory A. Zittel received $3,162 in industry payments from 2016 to 2025
CMS Open Payments shows 130 general payments to Dr. Zittel from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Duchesnay USA Incorporated paid the most, $514.
General payments to Dr. Zittel by program year, 2016 to 2025
General payments to Dr. Zittel by kind, 2016 to 2025
- Food and beverage$3,11799%
- Education$451%
Companies that paid Dr. Zittel 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. Gregory A. Zittel graduated from State University of New York at Buffalo School of Medicine
Dr. Zittel graduated from State University of New York at Buffalo School of Medicine in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory A. Zittel'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Gregory A. Zittel
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 A. Zittel's NPI number?
Dr. Gregory A. Zittel's NPI number is 1003807082. It was assigned on October 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory A. Zittel?
Dr. Gregory A. Zittel is an OB-GYN in Lake Mary, Florida. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Gregory A. Zittel practice?
Dr. Zittel practices at 719 Rodel Cv, Lake Mary, FL 32746. Dr. Zittel's primary practice is Orlando Health Medical Group Inc in Lake Mary, Florida. Dmand AI also links Dr. Zittel to 2 hospitals and 1 group practice or clinic.
What is Dr. Gregory A. Zittel's office phone number?
The practice phone on file for Dr. Zittel is (321) 841-2452.
What is Dr. Gregory A. Zittel's medical license number?
Dr. Zittel holds Florida license ME67849.
Which hospitals is Dr. Gregory A. Zittel affiliated with?
Dr. Zittel is affiliated with AdventHealth Orlando. Dmand AI links Dr. Zittel to 2 more hospitals.
What medical group is Dr. Gregory A. Zittel part of?
Dr. Zittel is linked to Orlando Health Medical Group.
Does Dr. Gregory A. Zittel accept Medicare?
Yes. CMS data shows Dr. Zittel billed Medicare for 233 services in 2024, and Dr. Zittel accepts Medicare assignment.
Does Dr. Gregory A. Zittel offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zittel as offering telehealth services.
What is Dr. Gregory A. Zittel's MIPS score?
Dr. Zittel's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Gregory A. Zittel see?
CMS counts 135 Medicare patients who saw Dr. Zittel in 2024, with an average age of 72.
What services does Dr. Gregory A. Zittel bill to Medicare?
In 2024, Dr. Zittel's most billed Medicare services were medicare service (G0101), medicare temporary code (Q0091) and office visit, established patient (99214).
Where did Dr. Gregory A. Zittel go to medical school?
Dr. Zittel graduated from State University of New York at Buffalo School of Medicine in 1991.
What drugs does Dr. Gregory A. Zittel prescribe most?
In 2024 Medicare Part D data, Dr. Zittel's most prescribed drugs by claims were Estradiol, Fluconazole and Progesterone.
Has Dr. Gregory A. Zittel received payments from drug or device companies?
CMS Open Payments shows $3,162 in general payments to Dr. Zittel from 31 companies from 2016 to 2025. The largest total came from Duchesnay USA Incorporated.
How long has Dr. Gregory A. Zittel been practicing?
Dr. Zittel graduated from medical school in 1991, 35 years ago.
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