Kim Marie Hartwig, MD
Family Medicine Physician · Merced, CA
Kim Marie Hartwig, MD is a family medicine physician with a practice address in Merced, California, and NPI 1063703759, issued on Apr 28, 2011. Check the license (California A115659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kim Marie Hartwig
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A115659 CA
Self-reported in NPPES; status is on the state search - Practice location
- 535 W 25TH St, Merced, CA 95340
- Phone
- (209) 722-9066
- Enumerated
- Apr 28, 2011
- Record last updated
- Feb 11, 2022
- Fax
- (209) 383-1522
- Medicare enrollment
- Enrolled (PECOS I20110719000806); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 535 W 25TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mari Mockus, NPNurse Practitioner1801948724
- Jared Paskin, MDFamily Medicine Physician1063523595
- Salvador Sandoval, MDFamily Medicine Physician1750364030
Verify Kim Marie Hartwig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
487 Medicare Part D claims for 169 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Amlodipine Besylate34 claims
- Atorvastatin Calcium31 claims
- Lisinopril24 claims
- Losartan Potassium24 claims
- Fluticasone Propionate21 claims
- Levothyroxine Sodium21 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kim Marie Hartwig among 17,133 family medicine physician records in California
Kim Marie Hartwig, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 family medicine physician records list a practice address in Merced
They are 94 of the 2,836 NPPES records with a practice address in Merced, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Merced → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Vincent Ansley, MDMerced, CA 953401871584185
- David Barabe, M.D.Merced, CA 953401255361770
- Albert Col, M.D.Merced, CA 953401952411266
- Timothy Johnston, M.D.Merced, CA 953401528097847
- Jeanette Kuizon, MDMerced, CA 953401962485243
- Aimee NagtalonMerced, CA 953401487698221
- George Nevatt, MDMerced, CA 953401538194196
- Maciej Ossowski, M. D.Merced, CA 953401346207883
Common questions
What is Kim Marie Hartwig, MD's NPI number?
Kim Marie Hartwig, MD's National Provider Identifier (NPI) is 1063703759, issued on Apr 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kim Marie Hartwig, MD located?
The NPPES record lists a practice address at 535 W 25TH St, Merced, CA, 95340. Phone: (209) 722-9066. Providers update this record themselves, so call before visiting.
How can I verify Kim Marie Hartwig, MD's license?
NPPES lists California license number A115659, 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 Kim Marie Hartwig, MD prescribe under Medicare Part D?
In 2024, Kim Marie Hartwig, MD had 487 Medicare Part D claims for 169 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.
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.