Dr. Walter E. Ventayen, MD
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 15,205
- Industry payments
- $2,024
- Affiliated sites
- 2
- Practice address
- 4580 California Ave, Bakersfield, CA 93309
- Practice phone
- Call (661) 327-4411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bakersfield Family Medical Group
Urgent Care Center · Bakersfield, California
Find Dr. Ventayen'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. Walter E. Ventayen is an internist in Bakersfield, California
Dr. Ventayen practices at Bakersfield Family Medical Group in Bakersfield, California.
Dr. Ventayen's NPI, 1841303286, was assigned on August 17, 2006. Dr. Ventayen graduated from University of Santo Tomas in 1992. Dr. Ventayen's California license number on file is A66324.
- NPI
- 1841303286NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800928318
- NPI enumeration date
- August 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 327-4411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walter E. Ventayen practices at Bakersfield Family Medical Group in Bakersfield, California
Dr. Ventayen's primary practice is Bakersfield Family Medical Group, at 4580 California Ave, Bakersfield, CA 93309. The practice phone is (661) 327-4411.
- Bakersfield Family Medical Group4580 California Ave, Bakersfield, CA 93309Phone(661) 327-4411
Source: Dmand AI Affiliation Data
Dr. Walter E. Ventayen is affiliated with 2 sites of care and 1 medical group
Dr. Ventayen's primary practice is Bakersfield Family Medical Group in Bakersfield, California. The medical group on file is Bakersfield Family Medical Group. Dmand AI also links Dr. Ventayen to 1 more group practice or clinic, named with a free account. Dr. Ventayen's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walter E. Ventayen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ventayen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bakersfield Family Medical Group | 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. Walter E. Ventayen is one of 16,751 internists in California
Internal medicine is Dr. Ventayen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ventayen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ventayen has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists aneurysm, arthritis, bursitis, chronic diabetes, chronic hypertension, diabetic emergency, hives and joint arthropathy among the conditions Dr. Ventayen treats.
Internists near Dr. Ventayen
Counts of internists 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. Walter E. Ventayen billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Ventayen across 1 procedure code in 2024, all of them office visits, for 16 Medicare patients. Medicare paid $2,193 for them. Every service was in an office.
Dr. Ventayen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 412024: 2539%
Dr. Ventayen compared with the California median for internists, 2024
- Dr. Ventayen
- California median
- Medicare services
- 25vs 36193% below
- Medicare patients
- 16vs 15189% below
- Part D claims
- 14,545vs 42134.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ventayen'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. Ventayen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ventayen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter E. Ventayen treated 16 Medicare patients in 2024, average age 71
CMS counts 16 Medicare patients who saw Dr. Ventayen in 2024. 75% of them have high blood pressure. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ventayen's median patient age at 73, with 49% women.
Chronic conditions among Dr. Ventayen's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ventayen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter E. Ventayen wrote 15,205 Medicare Part D claims in 2024
In 2024, Dr. Ventayen wrote 15,205 Medicare Part D claims for 918 patients. 84% of them were for generic drugs. CMS names the drug for 14,545 of them, across 164 drugs with 11 or more claims each, at $1,509,545 in total drug cost. In 2023, CMS named 14,811 claims across 164 drugs.
Dr. Ventayen's Part D claims by kind of drug, 2024
- Generic12,818 claims84%
- Brand-name2,264 claims15%
- Other123 claims1%
Dr. Ventayen'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.
Drug classes CMS tracks in Dr. Ventayen's Part D claims, 2024
- Opioids2%229 of 15,205 claims
- Antibiotics1%213 of 15,205 claims
- Antipsychotics, patients 65 and over0%25 of 15,205 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: 14,8112024: 14,5452%
Drugs named by CMS: 164 in 2024, 164 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. Walter E. Ventayen takes part in Medicare
Dr. Ventayen 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. Walter E. Ventayen received $2,024 in industry payments from 2016 to 2025
CMS Open Payments shows 97 general payments to Dr. Ventayen from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $486.
General payments to Dr. Ventayen by program year, 2016 to 2025
Companies that paid Dr. Ventayen 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. Walter E. Ventayen graduated from University of Santo Tomas
Dr. Ventayen graduated from University of Santo Tomas in 1992.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Walter E. Ventayen accepts plans from 6 insurance carriers
Dr. Ventayen is in network with 6 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Humana
Plan types Dr. Ventayen accepts, by number of carriers
- HMO4
- Medicare3
- POS3
- PPO3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Walter E. Ventayen'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 |
| 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. Walter E. Ventayen
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. Walter E. Ventayen's NPI number?
Dr. Walter E. Ventayen's NPI number is 1841303286. It was assigned on August 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter E. Ventayen?
Dr. Walter E. Ventayen is an internist in Bakersfield, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Walter E. Ventayen practice?
Dr. Ventayen practices at 4580 California Ave, Bakersfield, CA 93309. Dr. Ventayen's primary practice is Bakersfield Family Medical Group in Bakersfield, California. Dmand AI also links Dr. Ventayen to 1 group practice or clinic.
What is Dr. Walter E. Ventayen's office phone number?
The practice phone on file for Dr. Ventayen is (661) 327-4411.
What is Dr. Walter E. Ventayen's medical license number?
Dr. Ventayen's California license number on file is A66324.
What medical group is Dr. Walter E. Ventayen part of?
Dr. Ventayen is linked to Bakersfield Family Medical Group.
Does Dr. Walter E. Ventayen accept Medicare?
Yes. CMS data shows Dr. Ventayen billed Medicare for 25 services in 2024, and Dr. Ventayen accepts Medicare assignment.
How many Medicare patients does Dr. Walter E. Ventayen see?
CMS counts 16 Medicare patients who saw Dr. Ventayen in 2024, with an average age of 71.
Is Dr. Walter E. Ventayen board certified?
Yes. Dr. Ventayen is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Walter E. Ventayen bill to Medicare?
In 2024, Dr. Ventayen's most billed Medicare services were office visit, established patient (99214).
Show 5 more questionsShow fewer questions
Where did Dr. Walter E. Ventayen go to medical school?
Dr. Ventayen graduated from University of Santo Tomas in 1992.
What drugs does Dr. Walter E. Ventayen prescribe most?
In 2024 Medicare Part D data, Dr. Ventayen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. Walter E. Ventayen received payments from drug or device companies?
CMS Open Payments shows $2,024 in general payments to Dr. Ventayen from 15 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Walter E. Ventayen been practicing?
Dr. Ventayen graduated from medical school in 1992, 34 years ago.
What insurance does Dr. Walter E. Ventayen accept?
Dr. Ventayen is in network with 6 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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