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Dr. Paul F. Stemmer, MD
NPI1891798112PAC ID0547254831
- Medicare services, 2022
- 381
- Part D claims, 2024
- 18
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $4,006
- Practice address
- 41820 Garstin Drive, Big Bear Lake, CA 92315
- Practice phone
- Call (909) 878-8246
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
BVCHD Family Health Center - Big Bear Lake
Rural Health Clinic - Hospital-Owned · Big Bear Lake, California
Find Dr. Stemmer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Paul F. Stemmer is a general surgeon in Big Bear Lake, California
Dr. Stemmer practices at BVCHD Family Health Center - Big Bear Lake in Big Bear Lake, California.
Dr. Stemmer's NPI, 1891798112, was assigned on May 31, 2005. Dr. Stemmer graduated from UC Irvine School of Medicine in 1986. Dr. Stemmer holds California license G63347.
NPI and contact details
- NPI
- 1891798112NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547254831
- NPI enumeration date
- May 31, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 878-8246
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Paul F. Stemmer practices at BVCHD Family Health Center - Big Bear Lake in Big Bear Lake, California
Dr. Stemmer's primary practice is BVCHD Family Health Center - Big Bear Lake, at 41820 Garstin Drive, Big Bear Lake, CA 92315. The practice phone is (909) 878-8246.
- BVCHD Family Health Center - Big Bear Lake41820 Garstin Drive, Big Bear Lake, CA 92315Phone(909) 878-8246
Source: Dmand AI Affiliation Data
Dr. Paul F. Stemmer is affiliated with 3 sites of care and 1 medical group
Dr. Stemmer's primary practice is BVCHD Family Health Center - Big Bear Lake in Big Bear Lake, California. Dr. Stemmer is also affiliated with Bear Valley Community Hospital. The medical group on file is Bear Valley Community Hospital. Dmand AI also links Dr. Stemmer to 1 more hospital, named with a free account. Dr. Stemmer's employer is on file too: a rural health clinic (rhc).
BVCHD Family Health Center - Big Bear LakePrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Paul F. Stemmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stemmer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| BVCHD Family Health Center - Big Bear Lake | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Paul F. Stemmer is one of 2,926 general surgeons in California
Surgery is Dr. Stemmer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Stemmer is board certified in surgery by the American Board of Surgery. Dr. Stemmer is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists abdominal hernia repair surgery, cancerous skin growth removal, colonoscopy, gallbladder removal, gastrointestinal bleeding, groin hernia surgery, hemorrhoids and mastectomy among the conditions Dr. Stemmer treats.
General surgeons near Dr. Stemmer
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
2,926general surgeons in California
2general surgeons in Big Bear Lake
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Paul F. Stemmer billed Medicare for 381 services in 2022
CMS data shows 381 Medicare services from Dr. Stemmer across 9 procedure codes in 2022. Medicare paid $21,705 for them.
Medicare services, 2022381
Paid by Medicare$21,705
Procedure codes9
Dr. Stemmer's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 3542022: 28719%
- Tests and treatments
- 2021: 602022: 575%
- Surgery
- 2021: 892022: 3758%
Where Dr. Stemmer's Medicare services took place, 2022
- In an office22258%
- In a facility15942%
Dr. Stemmer compared with the California median for general surgeons, 2022
- Dr. Stemmer
- California median
- Medicare services
- 381vs 1662.3 times
- Part D claims
- 13vs 3462% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Stemmer's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Stemmer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stemmer and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Paul F. Stemmer's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Stemmer's median patient age at 63, with 48% women.
Dr. Stemmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Paul F. Stemmer wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Stemmer wrote 18 Medicare Part D claims. 94% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $163 in total drug cost. In 2021, CMS named 21 claims across 1 drug.
Part D claims, 202418
Drugs named by CMS1
Total drug cost$163
Dr. Stemmer's Part D claims by kind of drug, 2024
- Generic17 claims94%
- Brand-name and other1 claims6%
Dr. Stemmer's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 212022: 1338%
Drugs named by CMS: 1 in 2022, 1 in 2021.
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
How Dr. Paul F. Stemmer takes part in Medicare
Dr. Stemmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Paul F. Stemmer has 1 publication on record
Dmand AI links 1 paper to Dr. Stemmer. Dr. Stemmer's most frequent co-author is Andrzej Stanislaw Tarnawski, MD.
Papers1
Dr. Stemmer's most frequent co-authors
Recent publications by Dr. Stemmer
See who Dr. Stemmer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stemmer works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Paul F. Stemmer received $4,006 in industry payments from 2016 to 2019
CMS Open Payments shows 11 general payments to Dr. Stemmer from 4 drug and device companies from 2016 to 2019. Education make up the largest share, 94% of the total. Intuitive Surgical, Inc. paid the most, $3,931.
General payments to Dr. Stemmer by program year, 2016 to 2019
General payments to Dr. Stemmer by kind, 2016 to 2019
$4Kin total
- Education$3,75094%
- Food and beverage$2566%
Companies that paid Dr. Stemmer the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Paul F. Stemmer has 1 award and honors on record
Dmand AI lists 1 award for Dr. Stemmer.
Awards and honors for Dr. Stemmer
- Undated
- Compassionate Doctors
Source: Dmand AI Professional Profile Data
Dr. Paul F. Stemmer graduated from UC Irvine School of Medicine
Dr. Stemmer graduated from UC Irvine School of Medicine in 1986.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Paul F. Stemmer accepts plans from 7 insurance carriers
Dr. Stemmer is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- NV State Medicaid
Plan types Dr. Stemmer accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- EPO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Paul F. Stemmer'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 DataDmand AI Org Hierarchy 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 Data |
| 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)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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Paul F. Stemmer
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. Paul F. Stemmer's NPI number?
Dr. Paul F. Stemmer's NPI number is 1891798112. It was assigned on May 31, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Paul F. Stemmer?
Dr. Paul F. Stemmer is a general surgeon in Big Bear Lake, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Paul F. Stemmer practice?
Dr. Stemmer practices at 41820 Garstin Drive, Big Bear Lake, CA 92315. Dr. Stemmer's primary practice is BVCHD Family Health Center - Big Bear Lake in Big Bear Lake, California. Dmand AI also links Dr. Stemmer to 1 hospital.
What is Dr. Paul F. Stemmer's office phone number?
The practice phone on file for Dr. Stemmer is (909) 878-8246.
What is Dr. Paul F. Stemmer's medical license number?
Dr. Stemmer holds California license G63347.
Which hospitals is Dr. Paul F. Stemmer affiliated with?
Dr. Stemmer is affiliated with Bear Valley Community Hospital. Dmand AI links Dr. Stemmer to 1 more hospital.
What medical group is Dr. Paul F. Stemmer part of?
Dr. Stemmer is linked to Bear Valley Community Hospital.
Does Dr. Paul F. Stemmer accept Medicare?
Yes. CMS data shows Dr. Stemmer billed Medicare for 381 services in 2022, and Dr. Stemmer accepts Medicare assignment.
Is Dr. Paul F. Stemmer board certified?
Yes. Dr. Stemmer is board certified in surgery by the American Board of Surgery.
What services does Dr. Paul F. Stemmer bill to Medicare?
In 2022, Dr. Stemmer's most billed Medicare services were office visit, established patient (99213), heart test or procedure (93010) and office visit, established patient (99214).
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Where did Dr. Paul F. Stemmer go to medical school?
Dr. Stemmer graduated from UC Irvine School of Medicine in 1986.
What drugs does Dr. Paul F. Stemmer prescribe most?
In 2022 Medicare Part D data, Dr. Stemmer's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Paul F. Stemmer received payments from drug or device companies?
CMS Open Payments shows $4,006 in general payments to Dr. Stemmer from 4 companies from 2016 to 2019. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Paul F. Stemmer been practicing?
Dr. Stemmer graduated from medical school in 1986, 40 years ago.
Does Dr. Paul F. Stemmer do research?
Dmand AI links 1 publication to Dr. Stemmer.
Who does Dr. Paul F. Stemmer publish with?
Dr. Stemmer's most frequent co-authors are Andrzej Stanislaw Tarnawski, MD (1 shared paper).
What insurance does Dr. Paul F. Stemmer accept?
Dr. Stemmer is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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