Dr. Zachary Calvin Bowles, MD
- Medicare services, 2024
- 1,143
- Medicare patients, 2024
- 669
- Part D claims, 2024
- 238
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 333 Mercy Avenue, Merced, CA 95340
- Practice phone
- Call (209) 564-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bowles' professional email, personal email and mobile number
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Dr. Zachary Calvin Bowles is an emergency medicine physician in Merced, California
Dr. Bowles practices at Dignity Health - Mercy Medical Center in Merced, California, part of CommonSpirit Health.
Dr. Bowles' NPI, 1497140370, was assigned on March 30, 2015. Dr. Bowles graduated from University of Missouri, Columbia School of Medicine in 2015. Dr. Bowles holds California license A159259.
- NPI
- 1497140370NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618283086
- NPI enumeration date
- March 30, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 564-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary Calvin Bowles practices at Dignity Health - Mercy Medical Center in Merced, California
Dr. Bowles' primary practice is Dignity Health - Mercy Medical Center, at 333 Mercy Avenue, Merced, CA 95340 in Merced County. The practice phone is (209) 564-5000.
- Dignity Health - Mercy Medical Center333 Mercy Avenue, Merced, CA 95340 · Merced CountyPhone(209) 564-5000
Source: Dmand AI Affiliation Data
Dr. Zachary Calvin Bowles is affiliated with 3 sites of care and 1 medical group
Dr. Bowles' primary practice is Dignity Health - Mercy Medical Center in Merced, California, part of CommonSpirit Health. The medical group on file is San Joaquin Emergency Medical Associates. Dmand AI also links Dr. Bowles to 1 more hospital outpatient department and 1 rural health clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary Calvin Bowles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bowles practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy Medical Center | 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. Zachary Calvin Bowles is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Bowles' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Bowles is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Bowles
Counts of emergency medicine physicians 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. Zachary Calvin Bowles billed Medicare for 1,143 services in 2024
CMS data shows 1,143 Medicare services from Dr. Bowles across 6 procedure codes in 2024, for 669 Medicare patients. Medicare paid $90,590 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bowles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7192024: 719No change
- Tests and treatments
- 2023: 4522024: 4246%
Dr. Bowles compared with the California median for emergency medicine physicians, 2024
- Dr. Bowles
- California median
- Medicare services
- 1,143vs 2654.3 times
- Medicare patients
- 669vs 2432.8 times
- Part D claims
- 118vs 6290% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Bowles' 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. Bowles and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Calvin Bowles treated 669 Medicare patients in 2024, average age 73
CMS counts 669 Medicare patients who saw Dr. Bowles in 2024. The largest group is 65 to 74, with 235 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.27, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Bowles' median patient age at 68, with 56% women.
Dr. Bowles' Medicare patients by age, 2024
Dr. Bowles' Medicare patients by sex, 2024
- Women36955%
- Men30045%
Chronic conditions among Dr. Bowles' Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes52%
- Arthritis45%
- Chronic kidney disease39%
- Heart failure39%
- Anxiety36%
- Ischemic heart disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bowles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary Calvin Bowles wrote 238 Medicare Part D claims in 2024
In 2024, Dr. Bowles wrote 238 Medicare Part D claims for 172 patients. 95% of them were for generic drugs. CMS names the drug for 118 of them, across 8 drugs with 11 or more claims each, at $1,678 in total drug cost. In 2023, CMS named 116 claims across 7 drugs.
Dr. Bowles' Part D claims by kind of drug, 2024
- Generic227 claims95%
- Brand-name11 claims5%
Dr. Bowles' 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. Bowles' Part D claims, 2024
- Opioids8%20 of 238 claims
- Antibiotics35%84 of 238 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: 1162024: 1182%
Drugs named by CMS: 8 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. Zachary Calvin Bowles scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Bowles for performance year 2024, reported as part of a group. Dr. Bowles accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Zachary Calvin Bowles received $38 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Bowles from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $38.
Companies that paid Dr. Bowles the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Calvin Bowles graduated from University of Missouri, Columbia School of Medicine
Dr. Bowles graduated from University of Missouri, Columbia School of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary Calvin Bowles'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)Clinician Public Reporting: Overall MIPS Performance (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. Zachary Calvin Bowles
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. Zachary Calvin Bowles' NPI number?
Dr. Zachary Calvin Bowles' NPI number is 1497140370. It was assigned on March 30, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Calvin Bowles?
Dr. Zachary Calvin Bowles is an emergency medicine physician in Merced, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Zachary Calvin Bowles practice?
Dr. Bowles practices at 333 Mercy Avenue, Merced, CA 95340. Dr. Bowles' primary practice is Dignity Health - Mercy Medical Center in Merced, California, part of CommonSpirit Health. Dmand AI also links Dr. Bowles to 1 hospital outpatient department and 1 rural health clinic.
What is Dr. Zachary Calvin Bowles' office phone number?
The practice phone on file for Dr. Bowles is (209) 564-5000.
What is Dr. Zachary Calvin Bowles' medical license number?
Dr. Bowles holds California license A159259.
Which hospitals is Dr. Zachary Calvin Bowles affiliated with?
Dr. Bowles practices at Dignity Health - Mercy Medical Center in Merced, California.
What medical group is Dr. Zachary Calvin Bowles part of?
Dr. Bowles is linked to San Joaquin Emergency Medical Associates.
Does Dr. Zachary Calvin Bowles accept Medicare?
Yes. CMS data shows Dr. Bowles billed Medicare for 1,143 services in 2024, and Dr. Bowles accepts Medicare assignment.
What is Dr. Zachary Calvin Bowles' MIPS score?
Dr. Bowles' MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Zachary Calvin Bowles see?
CMS counts 669 Medicare patients who saw Dr. Bowles in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Zachary Calvin Bowles bill to Medicare?
In 2024, Dr. Bowles' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Zachary Calvin Bowles go to medical school?
Dr. Bowles graduated from University of Missouri, Columbia School of Medicine in 2015.
What drugs does Dr. Zachary Calvin Bowles prescribe most?
In 2024 Medicare Part D data, Dr. Bowles' most prescribed drugs by claims were Ondansetron ODT, Amoxicillin-Clavulanate Potass and Cefpodoxime Proxetil.
Has Dr. Zachary Calvin Bowles received payments from drug or device companies?
CMS Open Payments shows $38 in general payments to Dr. Bowles from 1 company from 2024 to 2024. The largest total came from Smith & Nephew, Inc.
How long has Dr. Zachary Calvin Bowles been practicing?
Dr. Bowles graduated from medical school in 2015, 11 years ago.
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