Dr. Deborah L. Hammer, MD
- Medicare services, 2024
- 44
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 62
- Hospital affiliations
- 2
- Industry payments
- $1,542
- Practice address
- 3601 W Thirteen Mile Rd, Royal Oak, MI 48073
- Practice phone
- Call (248) 898-5400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hammer'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. Deborah L. Hammer is an OB-GYN in Royal Oak, Michigan
Dr. Hammer practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health.
Dr. Hammer's NPI, 1407846462, was assigned on October 21, 2005. Dr. Hammer graduated from Wayne State University School of Medicine in 1996. Dr. Hammer holds Michigan license 4301068935.
- NPI
- 1407846462NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183638703
- NPI enumeration date
- October 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 898-5400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Deborah L. Hammer practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan
Dr. Hammer's primary practice is Corewell Health William Beaumont University Hospital, at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073 in Oakland County. The practice phone is (248) 898-5400.
- Corewell Health William Beaumont University Hospital3601 W Thirteen Mile Rd, Royal Oak, MI 48073 · Oakland CountyPhone(248) 898-5400
Source: Dmand AI Affiliation Data
Dr. Deborah L. Hammer is affiliated with 3 sites of care and 1 medical group
Dr. Hammer's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dr. Hammer is also affiliated with Corewell Health Beaumont Troy Hospital. The medical group on file is Clinton Women's Healthcare. Dmand AI also links Dr. Hammer to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Deborah L. Hammer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hammer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health William Beaumont University Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Deborah L. Hammer is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Hammer's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Hammer is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Hammer
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. Deborah L. Hammer billed Medicare for 44 services in 2024
CMS data shows 44 Medicare services from Dr. Hammer across 2 procedure codes in 2024, for 52 Medicare patients. Medicare paid $2,202 for them. Every service was in an office.
Dr. Hammer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 572024: 2851%
- Office and hospital visits
- 2023: 122024: 1633%
Dr. Hammer compared with the Michigan median for OB-GYNs, 2024
- Dr. Hammer
- Michigan median
- Medicare services
- 44vs 3719% above
- Medicare patients
- 52vs 3358% above
- Part D claims
- 11vs 3871% below
Medians across 1,227 OB-GYNs in Michigan with Dmand AI profiles that report each measure.
Dr. Hammer'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. Hammer and other OB-GYNs in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Deborah L. Hammer treated 52 Medicare patients in 2024, average age 71
CMS counts 52 Medicare patients who saw Dr. Hammer in 2024. The largest group is 65 to 74, with 34 patients. 73% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hammer's median patient age at 38, with 100% women.
Dr. Hammer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Hammer's Medicare patients, 2024
- High cholesterol73%
- High blood pressure65%
- Arthritis35%
- Osteoporosis33%
- Diabetes25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hammer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
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. Deborah L. Hammer wrote 62 Medicare Part D claims in 2024
In 2024, Dr. Hammer wrote 62 Medicare Part D claims for 31 patients. 87% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $375 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Hammer's Part D claims by kind of drug, 2024
- Generic54 claims87%
- Brand-name and other8 claims13%
Dr. Hammer's most prescribed drugs by claims, 2022
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. Hammer's Part D claims, 2024
- Antibiotics18%11 of 62 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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 112022: 11No change
Drugs named by CMS: 1 in 2022, 1 in 2020.
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. Deborah L. Hammer takes part in Medicare
Dr. Hammer 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. Deborah L. Hammer received $1,542 in industry payments from 2016 to 2025
CMS Open Payments shows 83 general payments to Dr. Hammer from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Astellas Pharma US Inc paid the most, $259.
General payments to Dr. Hammer by program year, 2016 to 2025
General payments to Dr. Hammer by kind, 2016 to 2025
- Food and beverage$1,52899%
- Education$141%
Companies that paid Dr. Hammer 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. Deborah L. Hammer graduated from Wayne State University School of Medicine
Dr. Hammer graduated from Wayne State University School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Deborah L. Hammer'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 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) |
| 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. Deborah L. Hammer
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. Deborah L. Hammer's NPI number?
Dr. Deborah L. Hammer's NPI number is 1407846462. It was assigned on October 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Deborah L. Hammer?
Dr. Deborah L. Hammer is an OB-GYN in Royal Oak, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Deborah L. Hammer practice?
Dr. Hammer practices at 3601 W Thirteen Mile Rd, Royal Oak, MI 48073. Dr. Hammer's primary practice is Corewell Health William Beaumont University Hospital in Royal Oak, Michigan, part of Corewell Health. Dmand AI also links Dr. Hammer to 1 group practice or clinic.
What is Dr. Deborah L. Hammer's office phone number?
The practice phone on file for Dr. Hammer is (248) 898-5400.
What is Dr. Deborah L. Hammer's medical license number?
Dr. Hammer holds Michigan license 4301068935.
Which hospitals is Dr. Deborah L. Hammer affiliated with?
Dr. Hammer practices at Corewell Health William Beaumont University Hospital in Royal Oak, Michigan. Dr. Hammer is also affiliated with Corewell Health Beaumont Troy Hospital.
What medical group is Dr. Deborah L. Hammer part of?
Dr. Hammer is linked to Clinton Women's Healthcare.
Does Dr. Deborah L. Hammer accept Medicare?
Yes. CMS data shows Dr. Hammer billed Medicare for 44 services in 2024, and Dr. Hammer accepts Medicare assignment.
How many Medicare patients does Dr. Deborah L. Hammer see?
CMS counts 52 Medicare patients who saw Dr. Hammer in 2024, with an average age of 71.
What services does Dr. Deborah L. Hammer bill to Medicare?
In 2024, Dr. Hammer's most billed Medicare services were medicare service (G0101) and office visit, established patient (99213).
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Where did Dr. Deborah L. Hammer go to medical school?
Dr. Hammer graduated from Wayne State University School of Medicine in 1996.
What drugs does Dr. Deborah L. Hammer prescribe most?
In 2022 Medicare Part D data, Dr. Hammer's most prescribed drugs by claims were Valacyclovir.
Has Dr. Deborah L. Hammer received payments from drug or device companies?
CMS Open Payments shows $1,542 in general payments to Dr. Hammer from 27 companies from 2016 to 2025. The largest total came from Astellas Pharma US Inc.
How long has Dr. Deborah L. Hammer been practicing?
Dr. Hammer graduated from medical school in 1996, 30 years ago.
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