Dr. Jakow Diener, MD
- Medicare services, 2021
- 18
- Part D claims, 2024
- 31
- Industry payments
- $2,795
- Medical groups
- 2
- State license
- 1
- Practice address
- 1100 Las Tablas Rd, Templeton, CA 93465
- Practice phone
- Call (603) 616-9916
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Diener'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. Jakow Diener is a medical oncologist in Templeton, California
Dr. Diener practices with Sinai Rehab Pain Medicine Associates, a medical group.
Dr. Diener's NPI, 1902872971, was assigned on February 28, 2006. Dr. Diener holds New Hampshire license 12255.
- NPI
- 1902872971NPI Registry (opens in a new tab)
- NPI enumeration date
- February 28, 2006
- NPI status
- Active
- Practice phone
- (603) 616-9916
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Jakow Diener's practice address is in Templeton, California
Dr. Diener's practice address in the NPI Registry is 1100 Las Tablas Rd, Templeton, CA 93465, in San Luis Obispo County. The practice phone is (603) 616-9916.
- NPI Registry address1100 Las Tablas Rd, Templeton, CA 93465 · San Luis Obispo CountyPhone(603) 616-9916
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jakow Diener is affiliated with 2 medical groups
Dr. Diener is part of Sinai Rehab Pain Medicine Associates, a medical group in Baltimore, Maryland. The medical group on file is Champlain Valley Physicians Hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jakow Diener's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diener practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sinai Rehab Pain Medicine Associates | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sinai Rehab Pain Medicine Associates and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jakow Diener is one of 415 medical oncologists in California
Medical oncology is Dr. Diener's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Diener is licensed in New Hampshire.
Specialties and state licenses
- Medical oncology, New HampshirePrimary
Medical oncologists near Dr. Diener
Counts of medical oncologists 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. Jakow Diener billed Medicare for 18 services in 2021
CMS data shows 18 Medicare services from Dr. Diener across 1 procedure code in 2021, all of them office visits. Medicare paid $1,974 for them. Every service was in an office.
Dr. Diener's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 1422021: 1887%
- Drugs given in the office
- 2020: 8352021: 0100%
- Tests and treatments
- 2020: 3152021: 0100%
- Other services
- 2020: 182021: 0100%
Dr. Diener compared with the California median for medical oncologists, 2021
- Dr. Diener
- California median
- Medicare services
- 18vs 49696% below
- Part D claims
- 11vs 14492% below
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Diener's most billed Medicare procedure codes, 2021
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. Diener and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jakow Diener's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Diener's median patient age at 60, with 33% women.
Dr. Diener's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Jakow Diener wrote 31 Medicare Part D claims in 2024
In 2024, Dr. Diener wrote 31 Medicare Part D claims. 52% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $8,113 in total drug cost. In 2021, CMS named 16 claims across 1 drug.
Dr. Diener's Part D claims by kind of drug, 2024
- Generic16 claims52%
- Brand-name15 claims48%
Dr. Diener'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.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 162024: 1131%
Drugs named by CMS: 1 in 2024, 1 in 2021.
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. Jakow Diener received $2,795 in industry payments from 2016 to 2020
CMS Open Payments shows 31 general payments to Dr. Diener from 18 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 99% of the total. Exelixis Inc. paid the most, $436.
General payments to Dr. Diener by program year, 2016 to 2020
General payments to Dr. Diener by kind, 2016 to 2020
- Food and beverage$2,77499%
- Education$211%
Companies that paid Dr. Diener the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jakow Diener'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 | Dmand 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jakow Diener
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. Jakow Diener's NPI number?
Dr. Jakow Diener's NPI number is 1902872971. It was assigned on February 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jakow Diener?
Dr. Jakow Diener is a medical oncologist in Templeton, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Jakow Diener practice?
Dr. Diener practices at 1100 Las Tablas Rd, Templeton, CA 93465. Dr. Diener's primary practice is Sinai Rehab Pain Medicine Associates, a medical group.
What is Dr. Jakow Diener's office phone number?
The practice phone on file for Dr. Diener is (603) 616-9916.
What is Dr. Jakow Diener's medical license number?
Dr. Diener holds New Hampshire license 12255.
What medical group is Dr. Jakow Diener part of?
Dr. Diener is part of Sinai Rehab Pain Medicine Associates in Baltimore, Maryland. Dr. Diener is also linked to Champlain Valley Physicians Hospital. Dmand AI links Dr. Diener to 2 medical groups in all.
Does Dr. Jakow Diener accept Medicare?
Yes. CMS data shows Dr. Diener billed Medicare for 18 services in 2021.
What services does Dr. Jakow Diener bill to Medicare?
In 2021, Dr. Diener's most billed Medicare services were office visit, established patient (99214).
What drugs does Dr. Jakow Diener prescribe most?
In 2024 Medicare Part D data, Dr. Diener's most prescribed drugs by claims were Ajovy Autoinjector.
Has Dr. Jakow Diener received payments from drug or device companies?
CMS Open Payments shows $2,795 in general payments to Dr. Diener from 18 companies from 2016 to 2020. The largest total came from Exelixis Inc.
How long has Dr. Jakow Diener been practicing?
Dr. Diener's NPI was assigned in 2006.
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