Am J Obstet Gynecol
Apgar ScoreBirth InjuriesBirth Weight
Dr. William H. Phillips, MD
NPI1538188198
- Medicare services, 2022
- 46
- Part D claims, 2024
- 15
- Publications
- 1
- Industry payments
- $482
- Affiliated sites
- 1
- Practice address
- 8263 Grove Ave, Rancho Cucamonga, CA 91730
- Practice phone
- Call (909) 920-9906
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat
Rancho Cucamonga, California
Find Dr. Phillips' professional email, personal email and mobile number
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Dr. William H. Phillips is an OB-GYN in Rancho Cucamonga, California
Dr. Phillips practices at Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat in Rancho Cucamonga, California.
Dr. Phillips' NPI, 1538188198, was assigned on July 18, 2006. Dr. Phillips graduated from David Geffen School of Medicine at UCLA in 1983. Dr. Phillips' California license number on file is A52308.
NPI and contact details
- NPI
- 1538188198NPI Registry (opens in a new tab)
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Practice phone
- (909) 920-9906
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. William H. Phillips practices at Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat in Rancho Cucamonga, California
Dr. Phillips' primary practice is Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat, at 8263 Grove Ave, Rancho Cucamonga, CA 91730 in San Bernardino County. The practice phone is (909) 920-9906.
- Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat8263 Grove Ave, Rancho Cucamonga, CA 91730 · San Bernardino CountyPhone(909) 920-9906
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William H. Phillips is affiliated with 2 sites of care and 1 medical group
Dr. Phillips' primary practice is Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat in Rancho Cucamonga, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Phillips to 1 more group practice or clinic, named with a free account.
Hearing Science of Rancho Cucamonga, a Professional Audiology CorporatPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William H. Phillips' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phillips practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William H. Phillips is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Phillips' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Phillips has a license on file in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
OB-GYNs near Dr. Phillips
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
4,642OB-GYNs in California
3OB-GYNs in Rancho Cucamonga
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William H. Phillips billed Medicare for 46 services in 2022
CMS data shows 46 Medicare services from Dr. Phillips across 3 procedure codes in 2022. Medicare paid $2,842 for them. Every service was in an office.
Medicare services, 202246
Paid by Medicare$2,842
Procedure codes3
Dr. Phillips' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 02022: 34
- Other services
- 2021: 152022: 1220%
Dr. Phillips compared with the California median for OB-GYNs, 2022
- Dr. Phillips
- California median
- Medicare services
- 46vs 5821% below
- Part D claims
- 45vs 3529% above
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Phillips' 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. Phillips and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William H. Phillips' patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Phillips' median patient age at 55, with 89% women.
Dr. Phillips' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women89%
- Men8%
Source: Dmand AI Patient Panel Data
Dr. William H. Phillips wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Phillips wrote 15 Medicare Part D claims. They cover 2 drugs, with $3,163 in total drug cost. In 2021, CMS named 23 claims across 1 drug.
Part D claims, 202415
Drugs named by CMS2
Total drug cost$3,163
Dr. Phillips' 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.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 232022: 4596%
Drugs named by CMS: 2 in 2022, 1 in 2021.
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
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Dr. William H. Phillips has 1 publication on record
Dmand AI links 1 paper to Dr. Phillips.
Papers1
Recent publications by Dr. Phillips
See who Dr. Phillips researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Phillips works with, so you can find a warm path to the right OB-GYNs.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William H. Phillips received $482 in industry payments from 2016 to 2021
CMS Open Payments shows 28 general payments to Dr. Phillips from 8 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $161.
General payments to Dr. Phillips by program year, 2016 to 2021
Companies that paid Dr. Phillips the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William H. Phillips has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Phillips, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Phillips
- 2013
- CMS Stage 1 EHR
- Undated
- ACOG Fellow
Source: Dmand AI Professional Profile Data
Dr. William H. Phillips graduated from David Geffen School of Medicine at UCLA
Dr. Phillips graduated from David Geffen School of Medicine at UCLA in 1983. Dr. Phillips is a member of American College of Obstetricians and Gynecologists.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. William H. Phillips accepts plans from 2 insurance carriers
Dr. Phillips is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Phillips accepts, by number of carriers
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. William H. Phillips'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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. William H. Phillips
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. William H. Phillips' NPI number?
Dr. William H. Phillips' NPI number is 1538188198. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William H. Phillips?
Dr. William H. Phillips is an OB-GYN in Rancho Cucamonga, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. William H. Phillips practice?
Dr. Phillips practices at 8263 Grove Ave, Rancho Cucamonga, CA 91730. Dr. Phillips' primary practice is Hearing Science of Rancho Cucamonga, a Professional Audiology Corporat in Rancho Cucamonga, California. Dmand AI also links Dr. Phillips to 1 group practice or clinic.
What is Dr. William H. Phillips' office phone number?
The practice phone on file for Dr. Phillips is (909) 920-9906.
What is Dr. William H. Phillips' medical license number?
Dr. Phillips' California license number on file is A52308.
What medical group is Dr. William H. Phillips part of?
Dr. Phillips is linked to The Permanente Medical Group, Inc.
Does Dr. William H. Phillips accept Medicare?
Yes. CMS data shows Dr. Phillips billed Medicare for 46 services in 2022.
What services does Dr. William H. Phillips bill to Medicare?
In 2022, Dr. Phillips' most billed Medicare services were office visit, established patient (99213), medicare service (G0101) and office visit, new patient (99202).
Where did Dr. William H. Phillips go to medical school?
Dr. Phillips graduated from David Geffen School of Medicine at UCLA in 1983.
What drugs does Dr. William H. Phillips prescribe most?
In 2022 Medicare Part D data, Dr. Phillips' most prescribed drugs by claims were Estradiol and Progesterone.
Show 4 more questionsShow fewer questions
Has Dr. William H. Phillips received payments from drug or device companies?
CMS Open Payments shows $482 in general payments to Dr. Phillips from 8 companies from 2016 to 2021. The largest total came from Allergan Inc.
How long has Dr. William H. Phillips been practicing?
Dr. Phillips graduated from medical school in 1983, 43 years ago.
Does Dr. William H. Phillips do research?
Dmand AI links 1 publication to Dr. Phillips.
What insurance does Dr. William H. Phillips accept?
Dr. Phillips is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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