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Dr. Michael Gerard Oefelein, MD
NPI1598873184PAC ID1355325507
- Medicare services, 2024
- 913
- Medicare patients, 2024
- 277
- Part D claims, 2024
- 2,697
- Publications
- 18
- MIPS score, 2024
- 26
- Practice address
- 3838 San Dimas St Ste B231, Bakersfield, CA 93301-1494
- Practice phone
- Call (661) 665-0505
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center - Dignity Health Medical Group - Bakersfield, CA
Physician office · Bakersfield, California
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Dr. Michael Gerard Oefelein is a urologist in Bakersfield, California
Dr. Oefelein practices at Surgery Center - Dignity Health Medical Group - Bakersfield, CA in Bakersfield, California.
Dr. Oefelein's NPI, 1598873184, was assigned on August 25, 2006. Dr. Oefelein graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1990. Dr. Oefelein holds California license G88466.
NPI and contact details
- NPI
- 1598873184NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355325507
- NPI enumeration date
- August 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (661) 665-0505
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Gerard Oefelein practices at Surgery Center - Dignity Health Medical Group - Bakersfield, CA in Bakersfield, California
Dr. Oefelein's primary practice is Surgery Center - Dignity Health Medical Group - Bakersfield, CA, at 3838 San Dimas St Ste B231, Bakersfield, CA 93301-1494. The practice phone is (661) 665-0505.
- Surgery Center - Dignity Health Medical Group - Bakersfield, CA3838 San Dimas St Ste B231, Bakersfield, CA 93301-1494Phone(661) 665-0505
Source: Dmand AI Affiliation Data
Dr. Michael Gerard Oefelein is affiliated with 4 sites of care
Dr. Oefelein's primary practice is Surgery Center - Dignity Health Medical Group - Bakersfield, CA in Bakersfield, California. Dr. Oefelein is also affiliated with Adventist Health Bakersfield. Dmand AI also links Dr. Oefelein to 2 more hospitals, each named with a free account.
Surgery Center - Dignity Health Medical Group - Bakersfield, CAPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael Gerard Oefelein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oefelein practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center - Dignity Health Medical Group - Bakersfield, CA | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Gerard Oefelein is one of 1,395 urologists in California
Urology is Dr. Oefelein's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Oefelein is licensed in California.
Specialties and state licenses
- Urology, CaliforniaPrimary
Urologists near Dr. Oefelein
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Gerard Oefelein billed Medicare for 913 services in 2024
CMS data shows 913 Medicare services from Dr. Oefelein across 15 procedure codes in 2024, for 277 Medicare patients. Medicare paid $92,777 for them.
Medicare services, 2024913
Medicare patients277
Paid by Medicare$92,777
Procedure codes15
Dr. Oefelein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5762024: 65414%
- Surgery
- 2023: 1512024: 24361%
- Imaging
- 2023: 142024: 1614%
Where Dr. Oefelein's Medicare services took place, 2024
- In an office86595%
- In a facility485%
Dr. Oefelein compared with the California median for urologists, 2024
- Dr. Oefelein
- California median
- Medicare services
- 913vs 1,05013% below
- Medicare patients
- 277vs 34620% below
- Part D claims
- 2,597vs 6424.0 times
Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.
Dr. Oefelein's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Gerard Oefelein treated 277 Medicare patients in 2024, average age 74
CMS counts 277 Medicare patients who saw Dr. Oefelein in 2024. The largest group is 65 to 74, with 132 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oefelein's median patient age at 71, with 19% women.
Medicare patients, 2024277
Average age74
Average risk score1.36
Also on Medicaid20%
Dr. Oefelein's Medicare patients by age, 2024
Dr. Oefelein's Medicare patients by sex, 2024
- Women5118%
- Men22682%
Chronic conditions among Dr. Oefelein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease48%
- Arthritis45%
- Diabetes40%
- Cancer35%
- Chronic kidney disease26%
- Atrial fibrillation23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oefelein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women19%
- Men80%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Gerard Oefelein wrote 2,697 Medicare Part D claims in 2024
In 2024, Dr. Oefelein wrote 2,697 Medicare Part D claims for 573 patients. 96% of them were for generic drugs. CMS names the drug for 2,597 of them, across 22 drugs with 11 or more claims each, at $90,914 in total drug cost. In 2023, CMS named 2,361 claims across 17 drugs.
Part D claims, 20242,697
Drugs named by CMS22
Total drug cost$90,914
Part D patients573
Dr. Oefelein's Part D claims by kind of drug, 2024
- Generic2,584 claims96%
- Brand-name and other113 claims4%
Dr. Oefelein's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Oefelein's Part D claims, 2024
- Opioids4%121 of 2,697 claims
- Antibiotics11%289 of 2,697 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,3612024: 2,59710%
Drugs named by CMS: 22 in 2024, 17 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael Gerard Oefelein scored 26 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 26 out of 100 for Dr. Oefelein for performance year 2024, reported individually. Dr. Oefelein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of prostate resection by Dr. Oefelein, more than 69% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Oefelein's MIPS scores, performance year 2024
- 26of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 86of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Oefelein ranks in Medicare procedure volume
- Prostate resection
- 69th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael Gerard Oefelein has 18 publications on record
Dmand AI links 18 papers to Dr. Oefelein, published from 2011 to 2013. 2011 was the busiest year, with 3. The most frequent topics are Breast Implants, Benzilates and Nortropanes. Dr. Oefelein has published most often in Drugs Aging. Dr. Oefelein's most frequent co-authors are David R. Staskin, MD, Emil Anthony Tanghetti, MD and Sunil Bhoyrul, MD.
Papers18
Years published2011 to 2013
Dr. Oefelein's papers by year, 2011 to 2013
Topics Dr. Oefelein writes about most
- Breast Implants
- Benzilates
- Nortropanes
- Prosthesis Design
- Urinary Bladder, Overactive
- Acne Vulgaris
- Administration, Intravesical
- Administration, Topical
Dr. Oefelein's most frequent co-authors
- David R. Staskin, MD2 shared papers
- Emil Anthony Tanghetti, MD2 shared papers
- Sunil Bhoyrul, MD1 shared paper
Recent publications by Dr. Oefelein
Administration, IntravesicalAntibiotics, AntineoplasticCost of Illness
Administration, IntravesicalCarcinoma, Transitional CellPostoperative Period
See who Dr. Oefelein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Oefelein works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael Gerard Oefelein received $5,302 in industry payments from 2016 to 2025
CMS Open Payments shows 210 general payments to Dr. Oefelein from 43 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Teleflex LLC paid the most, $1,174.
General payments to Dr. Oefelein by program year, 2016 to 2025
General payments to Dr. Oefelein by kind, 2016 to 2025
$5.3Kin total
- Food and beverage$4,77190%
- Travel and lodging$3376%
- Education$1954%
Companies that paid Dr. Oefelein the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Gerard Oefelein graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Dr. Oefelein graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Gerard Oefelein's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Gerard Oefelein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Gerard Oefelein's NPI number?
Dr. Michael Gerard Oefelein's NPI number is 1598873184. It was assigned on August 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Gerard Oefelein?
Dr. Michael Gerard Oefelein is a urologist in Bakersfield, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Michael Gerard Oefelein practice?
Dr. Oefelein practices at 3838 San Dimas St Ste B231, Bakersfield, CA 93301-1494. Dr. Oefelein's primary practice is Surgery Center - Dignity Health Medical Group - Bakersfield, CA in Bakersfield, California. Dmand AI also links Dr. Oefelein to 2 hospitals.
What is Dr. Michael Gerard Oefelein's office phone number?
The practice phone on file for Dr. Oefelein is (661) 665-0505.
What is Dr. Michael Gerard Oefelein's medical license number?
Dr. Oefelein holds California license G88466.
Which hospitals is Dr. Michael Gerard Oefelein affiliated with?
Dr. Oefelein is affiliated with Adventist Health Bakersfield. Dmand AI links Dr. Oefelein to 2 more hospitals.
Does Dr. Michael Gerard Oefelein accept Medicare?
Yes. CMS data shows Dr. Oefelein billed Medicare for 913 services in 2024, and Dr. Oefelein accepts Medicare assignment.
What is Dr. Michael Gerard Oefelein's MIPS score?
Dr. Oefelein's MIPS final score for performance year 2024 is 26 out of 100, reported individually.
How many Medicare patients does Dr. Michael Gerard Oefelein see?
CMS counts 277 Medicare patients who saw Dr. Oefelein in 2024, with an average age of 74.
What services does Dr. Michael Gerard Oefelein bill to Medicare?
In 2024, Dr. Oefelein's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99204).
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Where did Dr. Michael Gerard Oefelein go to medical school?
Dr. Oefelein graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1990.
What drugs does Dr. Michael Gerard Oefelein prescribe most?
In 2024 Medicare Part D data, Dr. Oefelein's most prescribed drugs by claims were Tamsulosin HCl, Oxybutynin Chloride ER and Finasteride.
Has Dr. Michael Gerard Oefelein received payments from drug or device companies?
CMS Open Payments shows $5,302 in general payments to Dr. Oefelein from 43 companies from 2016 to 2025. The largest total came from Teleflex LLC.
How long has Dr. Michael Gerard Oefelein been practicing?
Dr. Oefelein graduated from medical school in 1990, 36 years ago.
Does Dr. Michael Gerard Oefelein do research?
Dmand AI links 18 publications to Dr. Oefelein, published from 2011 to 2013.
Who does Dr. Michael Gerard Oefelein publish with?
Dr. Oefelein's most frequent co-authors are David R. Staskin, MD (2 shared papers), Emil Anthony Tanghetti, MD (2 shared papers) and Sunil Bhoyrul, MD (1 shared paper).
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