William Jacob Hertzing, MD
Hospitalist Physician · West Hollywood, CA
William Jacob Hertzing, MD is a hospitalist physician with a practice address in West Hollywood, California, and NPI 1144781964, issued on Mar 26, 2019. Check the license (California A178132, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Jacob Hertzing
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A178132 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd # B220, West Hollywood, CA 90048
- Phone
- (310) 423-5252
- Enumerated
- Mar 26, 2019
- Record last updated
- Aug 19, 2022
- Fax
- (310) 423-8441
- Medicare enrollment
- Enrolled (PECOS I20220415000704); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2019
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 8700 Beverly Blvd # B220
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel AldeaHospitalist Physician1104385319
- Arpit Arora, MDHospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician1013259357
- Noam BroderHospice and Palliative Medicine (Internal Medicine) Physician1831500628
- Vivian Chan, MDHospitalist Physician1427637628
- David Chen, M.D.Hospitalist Physician1619439585
- Jacqueline Craig, M.D.Hospitalist Physician1568752152
Verify William Jacob Hertzing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178132Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average hospitalist physician in 2024
304 Medicare Part D claims for 118 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Furosemide17 claims
- Atorvastatin Calcium16 claims
- Carvedilol16 claims
- Cefdinir14 claims
- Tamsulosin Hcl14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $145.03
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Cedars-Sinai Medical Care FoundationWest Hollywood, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Jacob Hertzing among 3,099 hospitalist physician records in California
William Jacob Hertzing, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2019 · median 2010 among the 2,505 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 hospitalist physician records list a practice address in West Hollywood
They are 99 of the 2,619 NPPES records with a practice address in West Hollywood, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in West Hollywood → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Afshin Afrashteh, MDLos Angeles, CA 900481346402989
- Mark Choi, M.D.Los Angeles, CA 900481124287354
- Shahida Farooqi, M.D.West Hollywood, CA 900481568622520
- Prabhu Gounder, M.D.West Hollywood, CA 900481508963893
- Gary Gutkin, M.D.West Hollywood, CA 900481366636573
- Denise JungWest Hollywood, CA 900481013179399
- Lowell Korman, M.D.West Hollywood, CA 900481912113309
- Jae Lee, M.D.Los Angeles, CA 900481073614079
Common questions
What is William Jacob Hertzing, MD's NPI number?
William Jacob Hertzing, MD's National Provider Identifier (NPI) is 1144781964, issued on Mar 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is William Jacob Hertzing, MD located?
The NPPES record lists a practice address at 8700 Beverly Blvd # B220, West Hollywood, CA, 90048. Phone: (310) 423-5252. Providers update this record themselves, so call before visiting.
How can I verify William Jacob Hertzing, MD's license?
NPPES lists California license number A178132, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Jacob Hertzing, MD prescribe under Medicare Part D?
In 2024, William Jacob Hertzing, MD had 304 Medicare Part D claims for 118 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is William Jacob Hertzing, MD's MIPS final score?
The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.