Holly M. Sliger, M.D.
Internal Medicine Physician · Monterey, CA
Holly M. Sliger, M.D. is an internal medicine physician with a practice address in Monterey, California, and NPI 1952505729, issued on Jun 13, 2007. Check the license (California C155576, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Holly M. Sliger
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C155576 CA
MD 28560 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2 Upper Ragsdale Dr Bldg A, Monterey, CA 93940
- Phone
- (831) 333-3040
- Enumerated
- Jun 13, 2007
- Record last updated
- Apr 1, 2025
- Fax
- (831) 886-3639
- Medicare enrollment
- Enrolled (PECOS I20250410002773); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2 Upper Ragsdale Dr Bldg A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Holly M. Sliger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C155576Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
84 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium12 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Montage Medical GroupMonterey, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Holly M. Sliger among 17,696 internal medicine physician records in California
Holly M. Sliger, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 internal medicine physician records list a practice address in Monterey
They are 29 of the 1,945 NPPES records with a practice address in Monterey, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Monterey → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rebecca Abundis, D.OMonterey, CA 939401144227372
- Najwa Bahu Baugh, M.D.Monterey, CA 939401891893657
- Ronald Garren, M.D.Monterey, CA 939401720152663
- Craig Geiler, M.D.Monterey, CA 939401891711529
- Sattar Hadi, MDMonterey, CA 939401437105145
- Georgina Heal, M.D.Monterey, CA 939401639129901
- Edward Kennedy, MDMonterey, CA 939401912098534
- Richard King, MDMonterey, CA 939401144390048
Common questions
What is Holly M. Sliger, M.D.'s NPI number?
Holly M. Sliger, M.D.'s National Provider Identifier (NPI) is 1952505729, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Holly M. Sliger, M.D. located?
The NPPES record lists a practice address at 2 Upper Ragsdale Dr Bldg A, Monterey, CA, 93940. Phone: (831) 333-3040. Providers update this record themselves, so call before visiting.
How can I verify Holly M. Sliger, M.D.'s license?
NPPES lists California license number C155576, 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 Holly M. Sliger, M.D. prescribe under Medicare Part D?
In 2024, Holly M. Sliger, M.D. had 84 Medicare Part D claims for 32 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Holly M. Sliger, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.