Dr. Herbert Sier, MD
- Medicare services, 2018
- 520
- Part D claims, 2024
- 33
- Publications
- 1
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 5901 E. Seventh Street, Long Beach, CA 90822
- Practice phone
- Call (562) 826-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sier'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. Herbert Sier is a geriatric medicine (internal medicine) physician in Long Beach, California
Dr. Sier practices at Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration.
Dr. Sier's NPI, 1881627446, was assigned on July 8, 2006. Dr. Sier graduated from VCU School of Medicine in 1980.
- NPI
- 1881627446NPI Registry (opens in a new tab)
- NPI enumeration date
- July 8, 2006
- NPI status
- Active
- Practice phone
- (562) 826-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Herbert Sier practices at Tibor Rubin VA Medical Center in Long Beach, California
Dr. Sier's primary practice is Tibor Rubin VA Medical Center, at 5901 E. Seventh Street, Long Beach, CA 90822 in Los Angeles County. The practice phone is (562) 826-8000.
- Tibor Rubin VA Medical Center5901 E. Seventh Street, Long Beach, CA 90822 · Los Angeles CountyPhone(562) 826-8000
Source: Dmand AI Affiliation Data
Dr. Herbert Sier is affiliated with 1 site of care and 2 medical groups
Dr. Sier's primary practice is Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration. The medical group on file is UCI Health Physicians. Dmand AI also links Dr. Sier to 1 more medical group, named with a free account. Dr. Sier's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Herbert Sier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sier practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tibor Rubin VA Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Herbert Sier is one of 497 geriatric medicine (internal medicine) physicians in California
Geriatric medicine is Dr. Sier's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Sier is board certified in geriatric medicine by the American Board of Internal Medicine. Dmand AI has Dr. Sier's licenses on file in 2 states: Illinois and California.
Specialties and state licenses
- Geriatric medicine (internal medicine), Illinois
- California license
Geriatric medicine (internal medicine) physicians near Dr. Sier
Counts of geriatric medicine (internal 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. Herbert Sier billed Medicare for 520 services in 2018
CMS data shows 520 Medicare services from Dr. Sier across 5 procedure codes in 2018. Medicare paid $32,113 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sier's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 9562018: 50347%
- Other services
- 2017: 192018: 1711%
Dr. Sier compared with the California median for geriatric medicine (internal medicine) physicians, 2018
- Dr. Sier
- California median
- Medicare services
- 520vs 42423% above
- Part D claims
- 54vs 93094% below
Medians across 466 geriatric medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Sier's most billed Medicare procedure codes, 2018
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. Sier?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sier and other geriatric medicine (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Herbert Sier's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Sier's median patient age at 81, with 36% women.
Dr. Sier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women36%
- Men64%
Source: Dmand AI Patient Panel Data
Dr. Herbert Sier wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Sier wrote 33 Medicare Part D claims. Every claim was for a generic drug. They cover 4 drugs, with $727 in total drug cost. In 2018, CMS named 3,201 claims across 77 drugs.
Dr. Sier's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 3,2012019: 5498%
Drugs named by CMS: 4 in 2019, 77 in 2018.
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. Herbert Sier has 1 publication on record
Dmand AI links 1 paper to Dr. Sier. Dr. Sier's most frequent co-author is Joseph Gromer Ouslander, MD.
Dr. Sier's most frequent co-authors
Recent publications by Dr. Sier
See who Dr. Sier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sier works with, so you can find a warm path to the right geriatric medicine (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Herbert Sier has 6 awards and honors on record
Dmand AI lists 6 awards for Dr. Sier, most recently Super Doctors Los Angeles Magazine in 2017.
Awards and honors for Dr. Sier
- 2017
- Super Doctors Los Angeles Magazine
- 2016
- Top Doctors Orange County
- 2013
- Top Doctors:LA Area
- Top Doctors:San Diego Area
- 2011
- CMS Stage 1 2012
- Undated
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Herbert Sier graduated from VCU School of Medicine
Dr. Sier graduated from VCU School of Medicine in 1980. Dr. Sier is a member of ACP and AGS.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Herbert Sier accepts plans from 4 insurance carriers
Dr. Sier is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Elevance
- Regence Health Plans
Plan types Dr. Sier accepts, by number of carriers
- Medicare4
- PPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Herbert Sier'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 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 |
| 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. Herbert Sier
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. Herbert Sier's NPI number?
Dr. Herbert Sier's NPI number is 1881627446. It was assigned on July 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Herbert Sier?
Dr. Herbert Sier is a geriatric medicine (internal medicine) physician in Long Beach, California. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).
Where does Dr. Herbert Sier practice?
Dr. Sier practices at 5901 E. Seventh Street, Long Beach, CA 90822. Dr. Sier's primary practice is Tibor Rubin VA Medical Center in Long Beach, California, part of Veterans Health Administration. Dmand AI also links Dr. Sier to 1 medical group.
What is Dr. Herbert Sier's office phone number?
The practice phone on file for Dr. Sier is (562) 826-8000.
Which states has Dr. Herbert Sier been licensed in?
Dmand AI has state licenses on file for Dr. Sier in Illinois (1981 to 2017) and California (1983 to 2027).
Which hospitals is Dr. Herbert Sier affiliated with?
Dr. Sier practices at Tibor Rubin VA Medical Center in Long Beach, California.
What medical group is Dr. Herbert Sier part of?
Dr. Sier is linked to UCI Health Physicians. Dmand AI links Dr. Sier to 1 more medical group.
Does Dr. Herbert Sier accept Medicare?
Yes. CMS data shows Dr. Sier billed Medicare for 520 services in 2018.
Is Dr. Herbert Sier board certified?
Yes. Dr. Sier is board certified in geriatric medicine by the American Board of Internal Medicine.
What services does Dr. Herbert Sier bill to Medicare?
In 2018, Dr. Sier's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, established patient (99213).
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Where did Dr. Herbert Sier go to medical school?
Dr. Sier graduated from VCU School of Medicine in 1980.
What drugs does Dr. Herbert Sier prescribe most?
In 2019 Medicare Part D data, Dr. Sier's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Amlodipine Besylate.
How long has Dr. Herbert Sier been practicing?
Dr. Sier graduated from medical school in 1980, 46 years ago.
Does Dr. Herbert Sier do research?
Dmand AI links 1 publication to Dr. Sier.
Who does Dr. Herbert Sier publish with?
Dr. Sier's most frequent co-authors are Joseph Gromer Ouslander, MD (1 shared paper).
What insurance does Dr. Herbert Sier accept?
Dr. Sier is in network with 4 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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