NPPES file of Aug 9, 2026

Christopher James Berg, M.D.

Cardiovascular Disease Physician · Fountain Valley, CA

Christopher James Berg, M.D. is a cardiovascular disease physician with a practice address in Fountain Valley, California, and NPI 1598296147, issued on Mar 24, 2017. Check the license (California A160087, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598296147
Name
Christopher James Berg
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
A160087 CA
Self-reported in NPPES; status is on the state search
Practice location
18111 Brookhurst St Ste 5100, Fountain Valley, CA 92708
Phone
(714) 546-2238
Enumerated
Mar 24, 2017
Record last updated
Jul 27, 2023
Fax
(714) 434-8145
Medicare enrollment
Enrolled (PECOS I20221101001542); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2017
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 18111 Brookhurst St Ste 5100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lu Chen, MDClinical Cardiac Electrophysiology Physician1679935050
  2. Sarah Elsayed, M.D.Cardiovascular Disease Physician1396049029
  3. Hoang Nguyen, M.D.Interventional Cardiology Physician1811164528
  4. Yu-Ming Ni, MDCardiovascular Disease Physician1033565338
  5. Sanjiv Patel, M.D.Cardiovascular Disease Physician1982801718
  6. Jessica Schachter, D.O.Cardiovascular Disease Physician1235664434

Verify Christopher James Berg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A160087
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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45% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,708 Medicare Part D claims for 338 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Christopher Berg1,708
  2. Specialty average3,078

Most prescribed

  1. Amlodipine Besylate253 claims
  2. Metoprolol Succinate186 claims
  3. Eliquis177 claims
  4. Atorvastatin Calcium127 claims
  5. Losartan Potassium92 claims
  6. Furosemide91 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 88.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score87.5
  2. Costout of 100 · 30%54.7
  3. Promoting interoperabilityout of 100 · 25%94.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,005.35

52 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Berg$1,005.35
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. California Heart AssociatesFountain Valley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher James Berg among 2,574 cardiovascular disease physician records in California

Christopher James Berg, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 91% of them.

  • NPI issued2017 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2017 · median 1999 among the 1,742 with a school on file
  • Record last updated2023 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Bao Bui, M.D.Fountain Valley, CA 927081801099593
  2. Simon Cheung, M.D.Fountain Valley, CA 927081841370210
  3. Amanda Donohue, D.O.Fountain Valley, CA 927081750587143
  4. Sarah Elsayed, M.D.Fountain Valley, CA 927081396049029
  5. Robert Greenfield, MDFountain Valley, CA 927081649307000
  6. Steven Le, M.D.Fountain Valley, CA 927081780835801
  7. Arvind Nirula, M.D.Fountain Valley, CA 927081437285095
  8. Sanjiv Patel, M.D.Fountain Valley, CA 927081982801718

Common questions

What is Christopher James Berg, M.D.'s NPI number?

Christopher James Berg, M.D.'s National Provider Identifier (NPI) is 1598296147, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Christopher James Berg, M.D. located?

The NPPES record lists a practice address at 18111 Brookhurst St Ste 5100, Fountain Valley, CA, 92708. Phone: (714) 546-2238. Providers update this record themselves, so call before visiting.

How can I verify Christopher James Berg, M.D.'s license?

NPPES lists California license number A160087, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher James Berg, M.D. prescribe under Medicare Part D?

In 2024, Christopher James Berg, M.D. had 1,708 Medicare Part D claims for 338 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Christopher James Berg, M.D.'s MIPS final score?

The 2023 MIPS final score is 88.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.