Dr. Olivia Allison Phifer-Combs, MD
- Medicare services, 2024
- 152
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 187
- Hospital affiliations
- 1
- Industry payments
- $3,117
- Practice address
- 926 N Michigan Ave, Saginaw, MI 48602
- Practice phone
- Call (989) 753-8453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley OB GYN Clinic
Saginaw, Michigan
Find Dr. Phifer-Combs' 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. Olivia Allison Phifer-Combs is an OB-GYN in Saginaw, Michigan
Dr. Phifer-Combs practices at Valley OB GYN Clinic in Saginaw, Michigan.
Dr. Phifer-Combs' NPI, 1366852923, was assigned on May 5, 2014. Dr. Phifer-Combs holds Michigan license 4301105038.
- NPI
- 1366852923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022302439
- NPI enumeration date
- May 5, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (989) 753-8453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Olivia Allison Phifer-Combs practices at Valley OB GYN Clinic in Saginaw, Michigan
Dr. Phifer-Combs' primary practice is Valley OB GYN Clinic, at 926 N Michigan Ave, Saginaw, MI 48602 in Saginaw County. The practice phone is (989) 753-8453.
- Valley OB GYN Clinic926 N Michigan Ave, Saginaw, MI 48602 · Saginaw CountyPhone(989) 753-8453
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Olivia Allison Phifer-Combs is affiliated with 3 sites of care and 1 medical group
Dr. Phifer-Combs' primary practice is Valley OB GYN Clinic in Saginaw, Michigan. Dr. Phifer-Combs is also affiliated with Covenant Medical Center Harrison. The medical group on file is Valley OB-Gyn Clinic. Dmand AI also links Dr. Phifer-Combs 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. Olivia Allison Phifer-Combs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phifer-Combs practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley OB GYN Clinic | 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. Olivia Allison Phifer-Combs is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Phifer-Combs' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Phifer-Combs is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Phifer-Combs
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. Olivia Allison Phifer-Combs billed Medicare for 152 services in 2024
CMS data shows 152 Medicare services from Dr. Phifer-Combs across 5 procedure codes in 2024, for 94 Medicare patients. Medicare paid $9,771 for them. Every service was in an office.
Dr. Phifer-Combs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 852024: 11535%
- Other services
- 2023: 142024: 2364%
- Tests and treatments
- 2023: 02024: 14
Dr. Phifer-Combs compared with the Michigan median for OB-GYNs, 2024
- Dr. Phifer-Combs
- Michigan median
- Medicare services
- 152vs 374.1 times
- Medicare patients
- 94vs 332.8 times
- Part D claims
- 86vs 382.3 times
Medians across 1,227 OB-GYNs in Michigan with Dmand AI profiles that report each measure.
Dr. Phifer-Combs' 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. Phifer-Combs and other OB-GYNs in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Olivia Allison Phifer-Combs treated 94 Medicare patients in 2024, average age 71
CMS counts 94 Medicare patients who saw Dr. Phifer-Combs in 2024. The largest group is 75 to 84, with 34 patients. 70% of them have high cholesterol, and 65% have high blood pressure. 23% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Phifer-Combs' median patient age at 33, with 99% women.
Dr. Phifer-Combs' Medicare patients by age, 2024
Chronic conditions among Dr. Phifer-Combs' Medicare patients, 2024
- High cholesterol70%
- High blood pressure65%
- Arthritis54%
- Anxiety34%
- Depression30%
- Mood disorders30%
- Diabetes26%
- Ischemic heart disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Phifer-Combs' 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
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Olivia Allison Phifer-Combs wrote 187 Medicare Part D claims in 2024
In 2024, Dr. Phifer-Combs wrote 187 Medicare Part D claims for 80 patients. 94% of them were for generic drugs. CMS names the drug for 86 of them, across 5 drugs with 11 or more claims each, at $4,001 in total drug cost. In 2023, CMS named 118 claims across 7 drugs.
Dr. Phifer-Combs' Part D claims by kind of drug, 2024
- Generic175 claims94%
- Brand-name12 claims6%
Dr. Phifer-Combs' 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. Phifer-Combs' Part D claims, 2024
- Antibiotics13%24 of 187 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: 1182024: 8627%
Drugs named by CMS: 5 in 2024, 7 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. Olivia Allison Phifer-Combs offers telehealth to Medicare patients
Dr. Phifer-Combs accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Phifer-Combs as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of the uterus: 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)
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Dr. Olivia Allison Phifer-Combs received $3,117 in industry payments from 2016 to 2025
CMS Open Payments shows 111 general payments to Dr. Phifer-Combs from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 64% of the total. Coloplast Corp paid the most, $1,290.
General payments to Dr. Phifer-Combs by program year, 2016 to 2025
General payments to Dr. Phifer-Combs by kind, 2016 to 2025
- Food and beverage$1,98264%
- Travel and lodging$1,13536%
Companies that paid Dr. Phifer-Combs the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Olivia Allison Phifer-Combs'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) |
| 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. Olivia Allison Phifer-Combs
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. Olivia Allison Phifer-Combs' NPI number?
Dr. Olivia Allison Phifer-Combs' NPI number is 1366852923. It was assigned on May 5, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Olivia Allison Phifer-Combs?
Dr. Olivia Allison Phifer-Combs is an OB-GYN in Saginaw, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Olivia Allison Phifer-Combs practice?
Dr. Phifer-Combs practices at 926 N Michigan Ave, Saginaw, MI 48602. Dr. Phifer-Combs' primary practice is Valley OB GYN Clinic in Saginaw, Michigan. Dmand AI also links Dr. Phifer-Combs to 1 group practice or clinic.
What is Dr. Olivia Allison Phifer-Combs' office phone number?
The practice phone on file for Dr. Phifer-Combs is (989) 753-8453.
What is Dr. Olivia Allison Phifer-Combs' medical license number?
Dr. Phifer-Combs holds Michigan license 4301105038.
Which hospitals is Dr. Olivia Allison Phifer-Combs affiliated with?
Dr. Phifer-Combs is affiliated with Covenant Medical Center Harrison.
What medical group is Dr. Olivia Allison Phifer-Combs part of?
Dr. Phifer-Combs is linked to Valley OB-Gyn Clinic.
Does Dr. Olivia Allison Phifer-Combs accept Medicare?
Yes. CMS data shows Dr. Phifer-Combs billed Medicare for 152 services in 2024, and Dr. Phifer-Combs accepts Medicare assignment.
Does Dr. Olivia Allison Phifer-Combs offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Phifer-Combs as offering telehealth services.
How many Medicare patients does Dr. Olivia Allison Phifer-Combs see?
CMS counts 94 Medicare patients who saw Dr. Phifer-Combs in 2024, with an average age of 71.
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What services does Dr. Olivia Allison Phifer-Combs bill to Medicare?
In 2024, Dr. Phifer-Combs' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0101).
What drugs does Dr. Olivia Allison Phifer-Combs prescribe most?
In 2024 Medicare Part D data, Dr. Phifer-Combs' most prescribed drugs by claims were Estradiol, Progesterone and Medroxyprogesterone Acetate.
Has Dr. Olivia Allison Phifer-Combs received payments from drug or device companies?
CMS Open Payments shows $3,117 in general payments to Dr. Phifer-Combs from 22 companies from 2016 to 2025. The largest total came from Coloplast Corp.
How long has Dr. Olivia Allison Phifer-Combs been practicing?
Dr. Phifer-Combs graduated from medical school in 2013, 13 years ago.
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