Kenneth Grier, M.D.
Family Medicine Physician · Apple Valley, CA
Kenneth Grier, M.D. is a family medicine physician with a practice address in Apple Valley, California, and NPI 1114235744, issued on Sep 16, 2010. Check the license (California A150771, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kenneth Grier
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A150771 CA
MD-16580 HI
Self-reported in NPPES; status is on the state search - Practice location
- 18564 US Highway 18 Ste 101, Apple Valley, CA 92307
- Phone
- (760) 242-7777
- Enumerated
- Sep 16, 2010
- Record last updated
- Oct 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180227002776); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Kenneth Grier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A150771Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average family medicine physician in 2024
7,965 Medicare Part D claims for 522 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 378 claims were for opioids.
Most prescribed
- Atorvastatin Calcium344 claims
- Amlodipine Besylate342 claims
- Levothyroxine Sodium252 claims
- Lisinopril239 claims
- Hydrocodone-Acetaminophen231 claims
- Gabapentin213 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: $425.45
22 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Kenneth Grier among 17,133 family medicine physician records in California
Kenneth Grier, M.D. 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 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).
20 family medicine physician records list a practice address in Apple Valley
They are 20 of the 1,518 NPPES records with a practice address in Apple Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Apple Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jaime David, MDApple Valley, CA 923071912056177
- Sandra Delgado-Campos, M.D.Apple Valley, CA 923071881652030
- Sukalpa Dutta, M.D.Apple Valley, CA 923071487768586
- John Hawes, DOApple Valley, CA 923071467400226
- Richard Jones, D.O.Apple Valley, CA 923071750388195
- Anjit Khurana, MDApple Valley, CA 923071659784593
- James Krider, M.DApple Valley, CA 923071215959945
- Craig Mueller, M.D.Apple Valley, CA 923071154375053
Common questions
What is Kenneth Grier, M.D.'s NPI number?
Kenneth Grier, M.D.'s National Provider Identifier (NPI) is 1114235744, issued on Sep 16, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Grier, M.D. located?
The NPPES record lists a practice address at 18564 US Highway 18 Ste 101, Apple Valley, CA, 92307. Phone: (760) 242-7777. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Grier, M.D.'s license?
NPPES lists California license number A150771, 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 Kenneth Grier, M.D. prescribe under Medicare Part D?
In 2024, Kenneth Grier, M.D. had 7,965 Medicare Part D claims for 522 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.