Dr. Amber L. Warnat, MD
- Medicare services, 2024
- 533
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 1,286
- Industry payments
- $583
- Affiliated sites
- 1
- Practice address
- 3080 John R Rd, Rochester Hills, MI 48307
- Practice phone
- Call (248) 336-3937
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Emad Nakkash, MD
Rochester Hills, Michigan
Find Dr. Warnat'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. Amber L. Warnat is an ophthalmologist in Rochester Hills, Michigan
Dr. Warnat practices at Emad Nakkash, MD in Rochester Hills, Michigan.
Dr. Warnat's NPI, 1366735128, was assigned on May 25, 2011. Dr. Warnat graduated from Wayne State University School of Medicine in 2010. Dr. Warnat holds Michigan license L1826429.
- NPI
- 1366735128NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709003510
- NPI enumeration date
- May 25, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 336-3937
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Amber L. Warnat practices at Emad Nakkash, MD in Rochester Hills, Michigan
Dr. Warnat's primary practice is Emad Nakkash, MD, at 3080 John R Rd, Rochester Hills, MI 48307 in Oakland County. The practice phone is (248) 336-3937.
- Emad Nakkash, MD3080 John R Rd, Rochester Hills, MI 48307 · Oakland CountyPhone(248) 336-3937
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Amber L. Warnat is affiliated with 2 sites of care and 1 medical group
Dr. Warnat's primary practice is Emad Nakkash, MD in Rochester Hills, Michigan. Dmand AI also links Dr. Warnat to 1 group practice or clinic 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. Amber L. Warnat's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warnat practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emad Nakkash, MD | Available with a free account |
| +1 more site and 1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Amber L. Warnat is one of 653 ophthalmologists in Michigan
Ophthalmology is Dr. Warnat's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Warnat is licensed in Michigan.
Specialties and state licenses
- Ophthalmology, MichiganPrimary
Ophthalmologists near Dr. Warnat
Counts of ophthalmologists 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. Amber L. Warnat billed Medicare for 533 services in 2024
CMS data shows 533 Medicare services from Dr. Warnat across 13 procedure codes in 2024, for 89 Medicare patients. Medicare paid $21,913 for them. Every service was in an office.
Dr. Warnat's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2162024: 38277%
- Office and hospital visits
- 2023: 612024: 9454%
- Imaging
- 2023: 252024: 3852%
- Surgery
- 2023: 02024: 19
Dr. Warnat compared with the Michigan median for ophthalmologists, 2024
- Dr. Warnat
- Michigan median
- Medicare services
- 533vs 1,08051% below
- Medicare patients
- 89vs 40478% below
- Part D claims
- 1,194vs 68874% above
Medians across 670 ophthalmologists in Michigan with Dmand AI profiles that report each measure.
Dr. Warnat'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. Warnat?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warnat and other ophthalmologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Amber L. Warnat treated 89 Medicare patients in 2024, average age 70
CMS counts 89 Medicare patients who saw Dr. Warnat in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 60% are also on Medicaid. Their average risk score is 1.88, 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. Warnat's median patient age at 69, with 60% women.
Dr. Warnat's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Warnat's Medicare patients by sex, 2024
- Women4652%
- Men4348%
Chronic conditions among Dr. Warnat's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes54%
- COPD43%
- Ischemic heart disease38%
- Mood disorders37%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Warnat'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
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Amber L. Warnat wrote 1,286 Medicare Part D claims in 2024
In 2024, Dr. Warnat wrote 1,286 Medicare Part D claims for 307 patients. 72% of them were for generic drugs. CMS names the drug for 1,194 of them, across 15 drugs with 11 or more claims each, at $97,234 in total drug cost. In 2023, CMS named 375 claims across 8 drugs.
Dr. Warnat's Part D claims by kind of drug, 2024
- Generic926 claims72%
- Brand-name360 claims28%
Dr. Warnat'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3752024: 1,194218%
Drugs named by CMS: 15 in 2024, 8 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
How Dr. Amber L. Warnat takes part in Medicare
Dr. Warnat accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Amber L. Warnat received $583 in industry payments from 2016 to 2025
CMS Open Payments shows 30 general payments to Dr. Warnat from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Shire North American Group Inc paid the most, $126.
General payments to Dr. Warnat by program year, 2016 to 2025
General payments to Dr. Warnat by kind, 2016 to 2025
- Food and beverage$55896%
- Gifts$193%
- Education$51%
Companies that paid Dr. Warnat 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. Amber L. Warnat graduated from Wayne State University School of Medicine
Dr. Warnat graduated from Wayne State University School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Amber L. Warnat'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)Doctors and Clinicians Utilization Data (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. Amber L. Warnat
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. Amber L. Warnat's NPI number?
Dr. Amber L. Warnat's NPI number is 1366735128. It was assigned on May 25, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Amber L. Warnat?
Dr. Amber L. Warnat is an ophthalmologist in Rochester Hills, Michigan. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Amber L. Warnat practice?
Dr. Warnat practices at 3080 John R Rd, Rochester Hills, MI 48307. Dr. Warnat's primary practice is Emad Nakkash, MD in Rochester Hills, Michigan. Dmand AI also links Dr. Warnat to 1 group practice or clinic and 1 medical group.
What is Dr. Amber L. Warnat's office phone number?
The practice phone on file for Dr. Warnat is (248) 336-3937.
What is Dr. Amber L. Warnat's medical license number?
Dr. Warnat holds Michigan license L1826429.
Does Dr. Amber L. Warnat accept Medicare?
Yes. CMS data shows Dr. Warnat billed Medicare for 533 services in 2024, and Dr. Warnat accepts Medicare assignment.
How many Medicare patients does Dr. Amber L. Warnat see?
CMS counts 89 Medicare patients who saw Dr. Warnat in 2024, with an average age of 70.
What services does Dr. Amber L. Warnat bill to Medicare?
In 2024, Dr. Warnat's most billed Medicare services were eye exam or test (92250), eye exam or test (92083) and eye exam or test (92133).
Where did Dr. Amber L. Warnat go to medical school?
Dr. Warnat graduated from Wayne State University School of Medicine in 2010.
What drugs does Dr. Amber L. Warnat prescribe most?
In 2024 Medicare Part D data, Dr. Warnat's most prescribed drugs by claims were Erythromycin, Latanoprost and Brimonidine Tartrate.
Has Dr. Amber L. Warnat received payments from drug or device companies?
CMS Open Payments shows $583 in general payments to Dr. Warnat from 14 companies from 2016 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. Amber L. Warnat been practicing?
Dr. Warnat graduated from medical school in 2010, 16 years ago.
Selling to ophthalmology practices?
See ophthalmologists in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card