Dr. Chad S. Abbey, DO
- Medicare services, 2022
- 23
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 41
- Hospital affiliations
- 1
- Industry payments
- $1,068
- Practice address
- 1611 Zimmerman Trl, Billings, MT 59102
- Practice phone
- Call (406) 248-3607
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Billings OB-GYN Associates
Billings, Montana
Find Dr. Abbey's professional email, personal email and mobile number
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Dr. Chad S. Abbey is an OB-GYN in Billings, Montana
Dr. Abbey practices at Billings OB-GYN Associates in Billings, Montana.
Dr. Abbey's NPI, 1336346568, was assigned on June 29, 2007. Dr. Abbey graduated from West Virginia School of Osteopathic Medicine in 2007. Dr. Abbey holds Montana license 41014.
- NPI
- 1336346568NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941476147
- NPI enumeration date
- June 29, 2007
- NPI status
- Active
- Practice phone
- (406) 248-3607
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Chad S. Abbey practices at Billings OB-GYN Associates in Billings, Montana
Dr. Abbey's primary practice is Billings OB-GYN Associates, at 1611 Zimmerman Trl, Billings, MT 59102 in Yellowstone County. The practice phone is (406) 248-3607.
- Billings OB-GYN Associates1611 Zimmerman Trl, Billings, MT 59102 · Yellowstone CountyPhone(406) 248-3607
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chad S. Abbey is affiliated with 3 sites of care and 1 medical group
Dr. Abbey's primary practice is Billings OB-GYN Associates in Billings, Montana. Dr. Abbey is also affiliated with St. Vincent Regional Hospital. The medical group on file is Billings OB-GYN Associates. Dmand AI also links Dr. Abbey to 1 more group practice or clinic, 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. Chad S. Abbey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Abbey practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Billings OB-GYN Associates | 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. Chad S. Abbey is one of 116 OB-GYNs in Montana
Obstetrics and gynecology is Dr. Abbey's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Abbey is licensed in Montana.
Specialties and state licenses
- Obstetrics and gynecology, MontanaPrimary
OB-GYNs near Dr. Abbey
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. Chad S. Abbey billed Medicare for 23 services in 2022
CMS data shows 23 Medicare services from Dr. Abbey across 2 procedure codes in 2022, for 24 Medicare patients. Medicare paid $2,162 for them. Every service was in an office.
Dr. Abbey's Medicare services by type, 2017 to 2022
- 2017
- 2022
- Imaging
- 2017: 02022: 12
- Office and hospital visits
- 2017: 162022: 1131%
Dr. Abbey compared with the Montana median for OB-GYNs, 2022
- Dr. Abbey
- Montana median
- Medicare services
- 23vs 3432% below
- Medicare patients
- 24vs 3429% below
- Part D claims
- 15vs 2335% below
Medians across 112 OB-GYNs in Montana with Dmand AI profiles that report each measure.
Dr. Abbey's most billed Medicare procedure codes, 2022
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. Abbey and other OB-GYNs in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chad S. Abbey treated 24 Medicare patients in 2024, average age 67
CMS counts 24 Medicare patients who saw Dr. Abbey in 2024. The largest group is 65 to 74, with 13 patients. 58% of them have high cholesterol, and 46% have high blood pressure. Their average risk score is 0.80, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Abbey's median patient age at 33, with 100% women.
Dr. Abbey's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Abbey's Medicare patients, 2024
- High cholesterol58%
- High blood pressure46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Abbey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 33
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. Chad S. Abbey wrote 41 Medicare Part D claims in 2024
In 2024, Dr. Abbey wrote 41 Medicare Part D claims for 15 patients. 88% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $731 in total drug cost. In 2020, CMS named 40 claims across 2 drugs.
Dr. Abbey's Part D claims by kind of drug, 2024
- Generic36 claims88%
- Brand-name and other5 claims12%
Dr. Abbey'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, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 402024: 1563%
Drugs named by CMS: 1 in 2024, 2 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. Chad S. Abbey takes part in Medicare
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Source: Doctors and Clinicians Utilization Data (CMS)
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Dr. Chad S. Abbey received $1,068 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Abbey from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $605.
General payments to Dr. Abbey by program year, 2016 to 2025
Companies that paid Dr. Abbey 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. Chad S. Abbey graduated from West Virginia School of Osteopathic Medicine
Dr. Abbey graduated from West Virginia School of Osteopathic Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Chad S. Abbey'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 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. Chad S. Abbey
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. Chad S. Abbey's NPI number?
Dr. Chad S. Abbey's NPI number is 1336346568. It was assigned on June 29, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Chad S. Abbey?
Dr. Chad S. Abbey is an OB-GYN in Billings, Montana. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Chad S. Abbey practice?
Dr. Abbey practices at 1611 Zimmerman Trl, Billings, MT 59102. Dr. Abbey's primary practice is Billings OB-GYN Associates in Billings, Montana. Dmand AI also links Dr. Abbey to 1 group practice or clinic.
What is Dr. Chad S. Abbey's office phone number?
The practice phone on file for Dr. Abbey is (406) 248-3607.
What is Dr. Chad S. Abbey's medical license number?
Dr. Abbey holds Montana license 41014.
Which hospitals is Dr. Chad S. Abbey affiliated with?
Dr. Abbey is affiliated with St. Vincent Regional Hospital.
What medical group is Dr. Chad S. Abbey part of?
Dr. Abbey is linked to Billings OB-GYN Associates.
Does Dr. Chad S. Abbey accept Medicare?
Yes. CMS data shows Dr. Abbey billed Medicare for 23 services in 2022.
How many Medicare patients does Dr. Chad S. Abbey see?
CMS counts 24 Medicare patients who saw Dr. Abbey in 2024, with an average age of 67.
What services does Dr. Chad S. Abbey bill to Medicare?
In 2022, Dr. Abbey's most billed Medicare services were ultrasound (76830) and office visit, new patient (99204).
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Where did Dr. Chad S. Abbey go to medical school?
Dr. Abbey graduated from West Virginia School of Osteopathic Medicine in 2007.
What drugs does Dr. Chad S. Abbey prescribe most?
In 2024 Medicare Part D data, Dr. Abbey's most prescribed drugs by claims were Estradiol (Once Weekly).
Has Dr. Chad S. Abbey received payments from drug or device companies?
CMS Open Payments shows $1,068 in general payments to Dr. Abbey from 12 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Chad S. Abbey been practicing?
Dr. Abbey graduated from medical school in 2007, 19 years ago.
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