Susan Callaway Ferguson, MD
Addiction Medicine (Internal Medicine) Physician · Oakland, CA
Susan Callaway Ferguson, MD is an addiction medicine (internal medicine) physician with a practice address in Oakland, California, and NPI 1093756678, issued on Jun 8, 2006. Check the license (California A68471, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Callaway Ferguson
- Credential
- MD
- Primary taxonomy
- Addiction Medicine (Internal Medicine) Physician 207RA0401X
- License number
- A68471 CA
Self-reported in NPPES; status is on the state search - Practice location
- 616 16TH St, Oakland, CA 94612
- Phone
- (510) 451-4270
- Enumerated
- Jun 8, 2006
- Record last updated
- Mar 4, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (510) 451-4285
- Entity
- Type 1 · individual
8 nearest addiction medicine (internal medicine) physician records → All 73 in California → Look up another NPI →
Also registered at 616 16TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Romaine Bennett, ARNPNurse Practitioner1982020830
- Joann Bianchi Wojick, LCSWClinical Social Worker1700073285
- Maria Culcasi, LCSWClinical Social Worker1023060662
- Matthew Day, L.C.S.W.Clinical Social Worker1235345869
- Kirsten FlaggFamily Nurse Practitioner1134537244
- Douglas Frey, MSN, NP-C, FNPFamily Nurse Practitioner1467711572
Verify Susan Callaway Ferguson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68471Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average addiction medicine (internal medicine) physician in 2024
2,814 Medicare Part D claims for 172 beneficiaries, against an average of 829 among the 401 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium263 claims
- Pravastatin Sodium178 claims
- Metformin Hcl143 claims
- Losartan Potassium137 claims
- Amlodipine Besylate129 claims
- Gabapentin104 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.
Susan Callaway Ferguson among 73 addiction medicine (internal medicine) physician records in California
Susan Callaway Ferguson, MD is one of 73 addiction medicine (internal medicine) physician records with a practice address in California. 75% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 51% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2014 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Medicine (Internal Medicine) Physician providers in California
There are 73 addiction medicine (internal medicine) physician records in California.
All 73 in California → Every provider in Oakland → Addiction Medicine (Internal Medicine) Physician nationwide →
The 8 addiction medicine (internal medicine) physician records with the nearest ZIP codes
- Kyle Moore, M.D.Richmond, CA 948041568580322
- Parmis Rad, M.D.San Rafael, CA 949011598977522
- Russell Sandberg, MDSan Rafael, CA 949011265522528
- Virginia Schaaf, M.D.Greenbrae, CA 949041427125533
- Joshua HoPalo Alto, CA 943041104408616
- Danielle Ross, DONovato, CA 949451265161335
- Lori Karan, MDSan Francisco, CA 941431508079807
- Alisha Goodrum, M.D.San Francisco, CA 941051275945909
Common questions
What is Susan Callaway Ferguson, MD's NPI number?
Susan Callaway Ferguson, MD's National Provider Identifier (NPI) is 1093756678, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan Callaway Ferguson, MD located?
The NPPES record lists a practice address at 616 16TH St, Oakland, CA, 94612. Phone: (510) 451-4270. Providers update this record themselves, so call before visiting.
How can I verify Susan Callaway Ferguson, MD's license?
NPPES lists California license number A68471, 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 Susan Callaway Ferguson, MD prescribe under Medicare Part D?
In 2024, Susan Callaway Ferguson, MD had 2,814 Medicare Part D claims for 172 beneficiaries; the average among addiction medicine (internal medicine) physician prescribers was 829. 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.