Donald A. Ramberg, M.D.
Neurological Surgery Physician · San Luis Obispo, CA
Donald A. Ramberg, M.D. is a neurological surgery physician with a practice address in San Luis Obispo, California, and NPI 1124093000, issued on Feb 22, 2006. Check the license (California G56939, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Donald A. Ramberg
- Credential
- M.D.
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- G56939 CA
Self-reported in NPPES; status is on the state search - Practice location
- 699 California Blvd, San Luis Obispo, CA 93401
- Phone
- (805) 543-6710
- Enumerated
- Feb 22, 2006
- Record last updated
- Sep 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (805) 543-8298
- Medicaid ID
- 00G569390 CA
- Medicare enrollment
- Enrolled (PECOS I20060908000188); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1978
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Verify Donald A. Ramberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average neurological surgery physician in 2024
216 Medicare Part D claims for 46 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 102 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen50 claims
- Oxycodone-Acetaminophen34 claims
- Baclofen19 claims
- Carisoprodol19 claims
- Zolpidem Tartrate15 claims
- Diazepam13 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: $109.49
1 payment: food and beverage; the largest payer was Medtronic, Inc. The 5,377 providers of this specialty with any payment received $14,925.58 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.
Donald A. Ramberg among 929 neurological surgery physician records in California
Donald A. Ramberg, M.D. is one of 929 neurological surgery physician records with a practice address in California. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 62% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1978 · median 2005 among the 612 with a school on file
- Record last updated2011 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in San Luis Obispo → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Phillip Kissel, M.D.San Luis Obispo, CA 934011306877030
- Elijah Wogu, DOSan Luis Obispo, CA 934011164622908
- David Yeh, MMDSan Luis Obispo, CA 934011720044415
- Benjamin Hendricks, MDSan Luis Obispo, CA 934051295180461
- Ramanand Dandillaya, M.D.Santa Maria, CA 934541508847187
- Alan EdelmanSanta Maria, CA 934541699886903
- Matthew Schreckinger, M.D.Santa Maria, CA 934541447488556
- Nicholas Slimack, MDSanta Maria, CA 934541265743884
Common questions
What is Donald A. Ramberg, M.D.'s NPI number?
Donald A. Ramberg, M.D.'s National Provider Identifier (NPI) is 1124093000, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald A. Ramberg, M.D. located?
The NPPES record lists a practice address at 699 California Blvd, San Luis Obispo, CA, 93401. Phone: (805) 543-6710. Providers update this record themselves, so call before visiting.
How can I verify Donald A. Ramberg, M.D.'s license?
NPPES lists California license number G56939, 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 Donald A. Ramberg, M.D. prescribe under Medicare Part D?
In 2024, Donald A. Ramberg, M.D. had 216 Medicare Part D claims for 46 beneficiaries; the average among neurological surgery physician prescribers was 172. 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.