Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Daniel Combitsis , DO

Internal Medicine β€’ Livermore, CA

Active NPI 1942346549 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3000 Las Positas Rd
Livermore, CA 945519627

Call 9252432600 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3000 Las Positas Rd

Livermore, CA 945519627

Telephone 9252432600
Organization at the Same NPPES Address or Phone
Kaiser Foundation Health Plan Inc Facility NPI 1982751210

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Permanente Medical Group Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2000

30-day fills

17,237 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$273,071 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

26 years (graduated 2000)

CMS Doctors and Clinicians data list 2000 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2007

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Combitsis has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Combitsis as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Livermore and California

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Livermore, CA (2024, 14 clinicians with data). Median for this group: 3,240. Middle half: 1,892 to 6,253.

More Part D prescriptions than 85% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: 1,254. Middle half: 150 to 4,240.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Livermore, CA (2024, 14 clinicians with data). Median for this group: $125,056. Middle half: $66,384 to $228,624.

A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: $88,105. Middle half: $7,557 to $307,080.

25 active clinicians are listed under Internal Medicine with a practice address in Livermore, CA (17,717 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Livermore

32% of these 25 clinicians have the CMS telehealth indicator.

48% of these 25 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D Β· Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 375 35,194 $4,474.43 127
Levothyroxine Sodium Levothyroxine Sodium 282 25,476 $5,035.40 89
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 268 4,073 $5,809.82 45
Amlodipine Besylate Amlodipine Besylate 241 22,468 $3,166.34 97
Rosuvastatin Calcium Rosuvastatin Calcium 232 21,238 $2,787.11 77
Lisinopril Lisinopril 194 18,946 $2,950.58 74
Furosemide Furosemide 171 13,092 $2,134.81 71
Metoprolol Succinate Metoprolol Succinate 164 13,142 $2,264.05 54
Losartan Potassium Losartan Potassium 162 15,640 $2,532.19 58
Tamsulosin Hcl Tamsulosin Hcl 159 14,060 $2,817.23 57
Omeprazole Omeprazole 153 9,832 $1,995.03 47
Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide 140 12,698 $1,605.05 45
Famotidine Famotidine 125 9,800 $1,700.79 43
Gabapentin Gabapentin 119 9,355 $3,626.80 46
Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen 119 1,965 $2,447.03 16
Fluticasone Propionate Fluticasone Propionate 117 4,350 $2,768.47 44
Carvedilol Carvedilol 115 7,720 $1,172.51 32
Trazodone Hcl Trazodone Hcl 110 6,598 $1,352.08 33
Hydrochlorothiazide Hydrochlorothiazide 106 10,270 $1,229.63 42
Alvesco Ciclesonide 105 5,280 $13,060.34 44
Atenolol Atenolol 104 10,225 $1,510.89 43
Terazosin Hcl Terazosin Hcl 103 9,740 $5,929.62 35
Chlorthalidone Chlorthalidone 100 9,958 $1,247.53 36
Albuterol Sulfate Hfa Albuterol Sulfate 100 2,781 $1,656.69 53
Simvastatin Simvastatin 89 7,987 $931.05 28

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES CA 20A8071

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
00AX80710 (CA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20040408000160

Enrollment State Jurisdiction

CA

PECOS Control ID

5193718609

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Permanente Medical Group Inc

901 Nevin Ave, Richmond, CA 948013143

Phone: 5103071500

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

21 listed
NPI 1689752784

Doctor of Medicine (M.D.)

NPI 1780374868

Doctor of Pharmacy (Pharm.D.)

Dr. Aditi Bommireddy , MD

Obstetrics & Gynecology

NPI 1205398609

Doctor of Medicine (M.D.)

Dr. Timoteo Canio , MD

Internal Medicine

NPI 1164594974

Doctor of Medicine (M.D.)

Dr. Yan Dai , MD

Internal Medicine

NPI 1740368836

Doctor of Medicine (M.D.)

Dr. Babita Dhapola , MD

Internal Medicine

NPI 1396811873

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
πŸ“
Updated Business Mailing Address January 06, 2022

Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123466 (Tel: 5106256262)

βœ…
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) July 08, 2007

Registered at 3000 LAS POSITAS RD, LIVERMORE, CA 945519627 (Tel: 9252432600)

πŸ“
Business Mailing Address (Initial Record) July 08, 2007

Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)

πŸ‘€
Provider Name / Credentials (Initial Record) July 08, 2007

Recorded as DANIEL COMBITSIS, DO

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Internal Medicine (license number reported to NPPES: CA 20A8071)

🟒
Initial NPI Registration & Enumeration January 30, 2007

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1942346549
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 30, 2007
Last Update: January 06, 2022
Sole Proprietor: No

Other Internal Medicine Providers in Livermore

All Internal Medicine Providers in Livermore

Mailing Address

1800 Harrison St Fl 7

Oakland, CA 946123466

Phone: 5106256262

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.