Dr. Gary K. Zerlin, MD
- Medicare services, 2024
- 137
- Medicare patients, 2024
- 71
- Part D claims, 2024
- 97
- Hospital affiliations
- 2
- Industry payments
- $29
- Practice address
- 3850 San Dimas Street, Bakersfield, CA 93301
- Practice phone
- Call (661) 663-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Millennium Surgery Center - Bakersfield
Surgery Center - Medicare-Certified · Bakersfield, California
Find Dr. Zerlin'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. Gary K. Zerlin is an otolaryngologist in Bakersfield, California
Dr. Zerlin practices at Millennium Surgery Center - Bakersfield in Bakersfield, California.
Dr. Zerlin's NPI, 1801873765, was assigned on December 30, 2005. Dr. Zerlin graduated from Loma Linda University School of Medicine in 1976. Dr. Zerlin holds California license G35992.
- NPI
- 1801873765NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446424691
- NPI enumeration date
- December 30, 2005
- NPI status
- Active
- Practice phone
- (661) 663-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gary K. Zerlin practices at Millennium Surgery Center - Bakersfield in Bakersfield, California
Dr. Zerlin's primary practice is Millennium Surgery Center - Bakersfield, at 3850 San Dimas Street, Bakersfield, CA 93301. The practice phone is (661) 663-3700.
- Millennium Surgery Center - Bakersfield3850 San Dimas Street, Bakersfield, CA 93301Phone(661) 663-3700
Source: Dmand AI Affiliation Data
Dr. Gary K. Zerlin is affiliated with 3 sites of care and 1 medical group
Dr. Zerlin's primary practice is Millennium Surgery Center - Bakersfield in Bakersfield, California. Dr. Zerlin is also affiliated with Dignity Health - Memorial Hospital. The medical group on file is Kern Medical. Dmand AI also links Dr. Zerlin to 1 more hospital, named with a free account. Dr. Zerlin's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary K. Zerlin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zerlin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Millennium Surgery Center - Bakersfield | 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. Gary K. Zerlin is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Zerlin's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Zerlin is licensed in California.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
Otolaryngologists near Dr. Zerlin
Counts of otolaryngologists 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. Gary K. Zerlin billed Medicare for 137 services in 2024
CMS data shows 137 Medicare services from Dr. Zerlin across 3 procedure codes in 2024, for 71 Medicare patients. Medicare paid $7,089 for them. Every service was in an office.
Dr. Zerlin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 8325%
- Tests and treatments
- 2023: 492024: 3920%
- Surgery
- 2023: 272024: 1544%
Dr. Zerlin compared with the California median for otolaryngologists, 2024
- Dr. Zerlin
- California median
- Medicare services
- 137vs 66679% below
- Medicare patients
- 71vs 29676% below
- Part D claims
- 12vs 11890% below
Medians across 1,045 otolaryngologists in California with Dmand AI profiles that report each measure.
Dr. Zerlin'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zerlin and other otolaryngologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary K. Zerlin treated 71 Medicare patients in 2024, average age 72
CMS counts 71 Medicare patients who saw Dr. Zerlin in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Zerlin's median patient age at 9, with 45% women.
Dr. Zerlin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zerlin's Medicare patients by sex, 2024
- Women4158%
- Men3042%
Chronic conditions among Dr. Zerlin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis56%
- Ischemic heart disease34%
- Anxiety30%
- Diabetes30%
- Heart failure20%
- COPD18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zerlin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 9
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary K. Zerlin wrote 97 Medicare Part D claims in 2024
In 2024, Dr. Zerlin wrote 97 Medicare Part D claims for 37 patients. 88% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $1,339 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Zerlin's Part D claims by kind of drug, 2024
- Generic85 claims88%
- Brand-name12 claims12%
Dr. Zerlin'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. Zerlin's Part D claims, 2024
- Antibiotics22%21 of 97 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: 112024: 129%
Drugs named by CMS: 1 in 2024, 1 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
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Dr. Gary K. Zerlin received $29 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Zerlin from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. R-Pharm US LLC paid the most, $29.
Companies that paid Dr. Zerlin the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gary K. Zerlin graduated from Loma Linda University School of Medicine
Dr. Zerlin graduated from Loma Linda University School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary K. Zerlin'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) |
| 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. Gary K. Zerlin
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. Gary K. Zerlin's NPI number?
Dr. Gary K. Zerlin's NPI number is 1801873765. It was assigned on December 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary K. Zerlin?
Dr. Gary K. Zerlin is an otolaryngologist in Bakersfield, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Gary K. Zerlin practice?
Dr. Zerlin practices at 3850 San Dimas Street, Bakersfield, CA 93301. Dr. Zerlin's primary practice is Millennium Surgery Center - Bakersfield in Bakersfield, California. Dmand AI also links Dr. Zerlin to 1 hospital.
What is Dr. Gary K. Zerlin's office phone number?
The practice phone on file for Dr. Zerlin is (661) 663-3700.
What is Dr. Gary K. Zerlin's medical license number?
Dr. Zerlin holds California license G35992.
Which hospitals is Dr. Gary K. Zerlin affiliated with?
Dr. Zerlin is affiliated with Dignity Health - Memorial Hospital. Dmand AI links Dr. Zerlin to 1 more hospital.
What medical group is Dr. Gary K. Zerlin part of?
Dr. Zerlin is linked to Kern Medical.
Does Dr. Gary K. Zerlin accept Medicare?
Yes. CMS data shows Dr. Zerlin billed Medicare for 137 services in 2024.
How many Medicare patients does Dr. Gary K. Zerlin see?
CMS counts 71 Medicare patients who saw Dr. Zerlin in 2024, with an average age of 72.
What services does Dr. Gary K. Zerlin bill to Medicare?
In 2024, Dr. Zerlin's most billed Medicare services were office visit, established patient (99213), ear, nose and throat service (92567) and surgery: lungs and airway (31575).
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Where did Dr. Gary K. Zerlin go to medical school?
Dr. Zerlin graduated from Loma Linda University School of Medicine in 1976.
What drugs does Dr. Gary K. Zerlin prescribe most?
In 2024 Medicare Part D data, Dr. Zerlin's most prescribed drugs by claims were Ciprofloxacin-Dexamethasone.
Has Dr. Gary K. Zerlin received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Dr. Zerlin from 1 company from 2017 to 2017. The largest total came from R-Pharm US LLC.
How long has Dr. Gary K. Zerlin been practicing?
Dr. Zerlin graduated from medical school in 1976, 50 years ago.
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