NPPES file of Aug 9, 2026

Philipp Andreas Sack, M.D.

Psychiatry Physician · Modesto, CA

Philipp Andreas Sack, M.D. is a psychiatry physician with a practice address in Modesto, California, and NPI 1790974863, issued on Oct 15, 2007. Check the license (California C133712, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790974863
Name
Philipp Andreas Sack
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
C133712 CA
15976R LA
Self-reported in NPPES; status is on the state search
Practice location
1601 Cummins Dr Ste D, Modesto, CA 95358
Phone
(510) 900-3125
Enumerated
Oct 15, 2007
Record last updated
Aug 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(504) 988-4270
Medicare enrollment
Enrolled (PECOS I20150213000168); accepts Medicare assignment
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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8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →

Also registered at 1601 Cummins Dr Ste D

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

  1. Nagui Achamallah, M.D.Psychiatry Physician1629057393
  2. Alex Chandler, M.D.Psychiatry Physician1497013288
  3. Jaimini Chauhan-James, M.D.Psychiatry Physician1700152618
  4. Jessy JosephPsychiatry Physician1457768764
  5. Carolyn Lanam, M.D.Emergency Medicine Physician1942664552
  6. Anthony Mazzarulli, MDPsychiatry Physician1801090006

Verify Philipp Andreas Sack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C133712    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

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2.4 times the Medicare Part D claims of the average psychiatry physician in 2024

2,406 Medicare Part D claims for 160 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 12 claims were for opioids.

  1. Philipp Sack2,406
  2. Specialty average1,000

Most prescribed

  1. Lorazepam233 claims
  2. Mirtazapine135 claims
  3. Bupropion Xl128 claims
  4. Quetiapine Fumarate124 claims
  5. Buspirone Hcl122 claims
  6. Clonazepam118 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.

Industry payments in 2024: $187.12

9 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Philipp Sack$187.12
  2. Specialty average$4,954.93

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. Cep America - Psychiatry PCWalnut Creek, CA

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

Philipp Andreas Sack among 8,673 psychiatry physician records in California

Philipp Andreas Sack, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2001 · median 2005 among the 3,295 with a school on file
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

All 8,673 in California → Every provider in Modesto → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Nagui Achamallah, M.D.Modesto, CA 953581629057393
  2. Alex Chandler, M.D.Modesto, CA 953581497013288
  3. Jaimini Chauhan-James, M.D.Modesto, CA 953581700152618
  4. Jessy JosephModesto, CA 953581457768764
  5. Anthony Mazzarulli, MDModesto, CA 953581801090006
  6. Visant Sanathara, M.D.Modesto, CA 953581760417661
  7. Shailinder Singh, M.D.Modesto, CA 953581952718017
  8. Mohsen Vazirian, M.D.Modesto, CA 953581225334097

Common questions

What is Philipp Andreas Sack, M.D.'s NPI number?

Philipp Andreas Sack, M.D.'s National Provider Identifier (NPI) is 1790974863, issued on Oct 15, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Philipp Andreas Sack, M.D. located?

The NPPES record lists a practice address at 1601 Cummins Dr Ste D, Modesto, CA, 95358. Phone: (510) 900-3125. Providers update this record themselves, so call before visiting.

How can I verify Philipp Andreas Sack, M.D.'s license?

NPPES lists California license number C133712, 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 Philipp Andreas Sack, M.D. prescribe under Medicare Part D?

In 2024, Philipp Andreas Sack, M.D. had 2,406 Medicare Part D claims for 160 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.