CommunicationHealth Care SurveysHealth Personnel
Dr. David Unger Blumenthal, MD
NPI1073958823PAC ID0446541767
- Medicare services, 2018
- 28
- Part D claims, 2024
- 1,138
- Publications
- 1
- Industry payments
- $1,677
- Affiliated sites
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Blumenthal'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. David Unger Blumenthal is an internist in Richmond, California
Dr. Blumenthal practices at Richmond Medical Center in Richmond, California.
Dr. Blumenthal's NPI, 1073958823, was assigned on May 7, 2013. Dr. Blumenthal graduated from Rush Medical College in 2013. Dr. Blumenthal's Michigan license number on file is 4301103129.
NPI and contact details
- NPI
- 1073958823NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446541767
- NPI enumeration date
- May 7, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Unger Blumenthal practices at Richmond Medical Center in Richmond, California
Dr. Blumenthal's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Unger Blumenthal is affiliated with 2 sites of care and 1 medical group
Dr. Blumenthal's primary practice is Richmond Medical Center in Richmond, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Blumenthal to 1 more group practice or clinic, named with a free account.
Richmond Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Unger Blumenthal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Blumenthal practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Blumenthal practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Unger Blumenthal is one of 16,751 internists in California
Internal medicine is Dr. Blumenthal's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Blumenthal is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Blumenthal's licenses on file in 3 states: Michigan, California and Illinois.
Specialties and state licenses
- Internal medicine, MichiganPrimary
- California license
- Illinois license
Clinical focus
Dmand AI lists lung cancer among the conditions Dr. Blumenthal treats.
Internists near Dr. Blumenthal
Counts of internists 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. David Unger Blumenthal billed Medicare for 28 services in 2018
CMS data shows 28 Medicare services from Dr. Blumenthal across 2 procedure codes in 2018. Medicare paid $3,378 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 201828
Paid by Medicare$3,378
Procedure codes2
Dr. Blumenthal compared with the California median for internists, 2018
- Dr. Blumenthal
- California median
- Medicare services
- 28vs 36192% below
- Part D claims
- 910vs 4212.2 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Blumenthal'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. Blumenthal?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Blumenthal and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Unger Blumenthal's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Blumenthal's median patient age at 66, with 50% women.
Dr. Blumenthal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. David Unger Blumenthal wrote 1,138 Medicare Part D claims in 2024
In 2024, Dr. Blumenthal wrote 1,138 Medicare Part D claims for 246 patients. 82% of them were for generic drugs. CMS names the drug for 910 of them, across 32 drugs with 11 or more claims each, at $1,224,547 in total drug cost. In 2023, CMS named 899 claims across 27 drugs.
Part D claims, 20241,138
Drugs named by CMS32
Total drug cost$1.2M
Part D patients246
Dr. Blumenthal's Part D claims by kind of drug, 2024
- Generic938 claims82%
- Brand-name200 claims18%
Dr. Blumenthal'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. Blumenthal's Part D claims, 2024
- Opioids12%141 of 1,138 claims
- Antibiotics2%22 of 1,138 claims
- Antipsychotics, patients 65 and over2%19 of 1,138 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: 8992024: 9101%
Drugs named by CMS: 32 in 2024, 27 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
How Dr. David Unger Blumenthal takes part in Medicare
Dr. Blumenthal accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find internists like Dr. Blumenthal by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. David Unger Blumenthal has 1 publication on record
Dmand AI links 1 paper to Dr. Blumenthal in 2016. Dr. Blumenthal's most frequent co-author is Mark Edward Cowen, MD.
Papers1
Dr. Blumenthal's most frequent co-authors
Recent publications by Dr. Blumenthal
See who Dr. Blumenthal researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Blumenthal works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Unger Blumenthal received $1,677 in industry payments from 2016 to 2019
CMS Open Payments shows 108 general payments to Dr. Blumenthal from 25 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 93% of the total. Bristol-Myers Squibb Company paid the most, $285.
General payments to Dr. Blumenthal by program year, 2016 to 2019
General payments to Dr. Blumenthal by kind, 2016 to 2019
$1.7Kin total
- Food and beverage$1,55693%
- Education$1217%
Companies that paid Dr. Blumenthal the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Unger Blumenthal graduated from Rush Medical College
Dr. Blumenthal graduated from Rush Medical College in 2013.
- Medical school
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. David Unger Blumenthal accepts plans from 1 insurance carrier
Dr. Blumenthal is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Blumenthal accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Unger Blumenthal'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. David Unger Blumenthal
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. David Unger Blumenthal's NPI number?
Dr. David Unger Blumenthal's NPI number is 1073958823. It was assigned on May 7, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. David Unger Blumenthal?
Dr. David Unger Blumenthal is an internist in Richmond, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Unger Blumenthal practice?
Dr. Blumenthal practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Blumenthal's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Blumenthal to 1 group practice or clinic.
What is Dr. David Unger Blumenthal's office phone number?
The practice phone on file for Dr. Blumenthal is (510) 307-1555.
What is Dr. David Unger Blumenthal's medical license number?
Dr. Blumenthal's Michigan license number on file is 4301103129, one of the licenses on file in 3 states.
Which states has Dr. David Unger Blumenthal been licensed in?
Dmand AI has state licenses on file for Dr. Blumenthal in Michigan (2016 to 2020), California (2019 to 2027) and Illinois (2015).
What medical group is Dr. David Unger Blumenthal part of?
Dr. Blumenthal is linked to The Permanente Medical Group, Inc.
Does Dr. David Unger Blumenthal accept Medicare?
Yes. CMS data shows Dr. Blumenthal billed Medicare for 28 services in 2018, and Dr. Blumenthal accepts Medicare assignment.
Is Dr. David Unger Blumenthal board certified?
Yes. Dr. Blumenthal is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. David Unger Blumenthal bill to Medicare?
In 2018, Dr. Blumenthal's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99223).
Show 7 more questionsShow fewer questions
Where did Dr. David Unger Blumenthal go to medical school?
Dr. Blumenthal graduated from Rush Medical College in 2013.
What drugs does Dr. David Unger Blumenthal prescribe most?
In 2024 Medicare Part D data, Dr. Blumenthal's most prescribed drugs by claims were Lorazepam, Dexamethasone and Ondansetron HCl.
Has Dr. David Unger Blumenthal received payments from drug or device companies?
CMS Open Payments shows $1,677 in general payments to Dr. Blumenthal from 25 companies from 2016 to 2019. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. David Unger Blumenthal been practicing?
Dr. Blumenthal graduated from medical school in 2013, 13 years ago.
Does Dr. David Unger Blumenthal do research?
Dmand AI links 1 publication to Dr. Blumenthal.
Who does Dr. David Unger Blumenthal publish with?
Dr. Blumenthal's most frequent co-authors are Mark Edward Cowen, MD (1 shared paper).
What insurance does Dr. David Unger Blumenthal accept?
Dr. Blumenthal is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card