Dr. Herbert Sier, MD

  • Long Beach, CA
  • Geriatric medicine (internal medicine) physician
NPI1881627446
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
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Mobile number
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Social profiles

Primary practice

Tibor Rubin VA Medical Center

Hospital · Long Beach, California

See all 3 affiliations

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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 and contact details
NPI enumeration date
July 8, 2006
NPI status
Active
Practice phone
(562) 826-8000
Professional email
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Personal email
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Mobile number
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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.

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.

See all 3 affiliations for Dr. Sier

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.

EHR by site
SiteEHR vendor and product
Tibor Rubin VA Medical CenterAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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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), Illinois1981 to 2017 · taxonomy 207RG0300X
  • California license1983 to 2027

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.

Medicare services, 2018520
Paid by Medicare$32,113
Procedure codes5

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.

See all procedures by Dr. Sier

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.

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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.

Part D claims, 202433
Drugs named by CMS4
Total drug cost$727

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.

See all prescribing by Dr. Sier

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.

Papers1

Dr. Sier's most frequent co-authors

Recent publications by Dr. Sier

See all 1 publications and co-authors

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.

How network discovery works

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

  1. 2017
    • Super Doctors Los Angeles Magazine
  2. 2016
    • Top Doctors Orange County
  3. 2013
    • Top Doctors:LA Area
    • Top Doctors:San Diego Area
  4. 2011
    • CMS Stage 1 2012
  5. 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.

  1. Medical schoolVCU School of Medicine
  2. Board certified in geriatric medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of 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

  1. Medicare4
  2. PPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Herbert Sier's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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).

Show 6 more questionsShow fewer questions

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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