Dr. Robert Leon Lynch II, MD
- Medicare services, 2024
- 793
- Medicare patients, 2024
- 270
- Part D claims, 2024
- 17,060
- Hospital affiliations
- 2
- Industry payments
- $9,967
- Practice address
- 350 S Oak Ave, Oakdale, CA 95361
- Practice phone
- Call (209) 847-3011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lynch's professional email, personal email and mobile number
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Dr. Robert Leon Lynch II is an internist in Oakdale, California
Dr. Lynch practices at Oak Valley Hospital in Oakdale, California, part of Oak Valley Hospital District.
Dr. Lynch's NPI, 1184644031, was assigned on July 20, 2006. Dr. Lynch graduated from UNR Med in 1996. Dr. Lynch holds California license A065277.
- NPI
- 1184644031NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002882743
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 847-3011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Leon Lynch II practices at Oak Valley Hospital in Oakdale, California
Dr. Lynch's primary practice is Oak Valley Hospital, at 350 S Oak Ave, Oakdale, CA 95361 in Stanislaus County. The practice phone is (209) 847-3011.
- Oak Valley Hospital350 S Oak Ave, Oakdale, CA 95361 · Stanislaus CountyPhone(209) 847-3011
Source: Dmand AI Affiliation Data
Dr. Robert Leon Lynch II is affiliated with 4 sites of care
Dr. Lynch's primary practice is Oak Valley Hospital in Oakdale, California, part of Oak Valley Hospital District. Dr. Lynch is also affiliated with Memorial Medical Center. Dmand AI also links Dr. Lynch to 2 more home health agencies, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Leon Lynch II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lynch practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oak Valley Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Oak Valley Hospital District and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert Leon Lynch II is one of 16,751 internists in California
Internal medicine is Dr. Lynch's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lynch is board certified in internal medicine by the American Board of Internal Medicine. Dr. Lynch is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute gallbladder or bile duct inflammation, acute gastroduodenitis, acute sinusitis, acute skin infection, ADHD, anxiety, arthritis and bronchitis among the conditions Dr. Lynch treats.
Internists near Dr. Lynch
Counts of internists 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. Robert Leon Lynch II billed Medicare for 793 services in 2024
CMS data shows 793 Medicare services from Dr. Lynch across 6 procedure codes in 2024, for 270 Medicare patients. Medicare paid $44,070 for them. Every service was in an office.
Dr. Lynch's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7722024: 7157%
- Lab and pathology
- 2023: 222024: 3350%
- Tests and treatments
- 2023: 312024: 303%
- Other services
- 2023: 172024: 1512%
Dr. Lynch compared with the California median for internists, 2024
- Dr. Lynch
- California median
- Medicare services
- 793vs 3612.2 times
- Medicare patients
- 270vs 15179% above
- Part D claims
- 16,220vs 42138.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lynch'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.
Need commercial claims for Dr. Lynch?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lynch and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Leon Lynch II treated 270 Medicare patients in 2024, average age 75
CMS counts 270 Medicare patients who saw Dr. Lynch in 2024. The largest group is 65 to 74, with 122 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lynch's median patient age at 68, with 50% women.
Dr. Lynch's Medicare patients by age, 2024
Dr. Lynch's Medicare patients by sex, 2024
- Women14253%
- Men12847%
Chronic conditions among Dr. Lynch's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Arthritis41%
- Atrial fibrillation20%
- Chronic kidney disease18%
- Ischemic heart disease15%
- Osteoporosis15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lynch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Leon Lynch II wrote 17,060 Medicare Part D claims in 2024
In 2024, Dr. Lynch wrote 17,060 Medicare Part D claims for 940 patients. 87% of them were for generic drugs. CMS names the drug for 16,220 of them, across 180 drugs with 11 or more claims each, at $1,320,599 in total drug cost. In 2023, CMS named 13,913 claims across 170 drugs.
Dr. Lynch's Part D claims by kind of drug, 2024
- Generic14,869 claims87%
- Brand-name2,057 claims12%
- Other134 claims1%
Dr. Lynch'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. Lynch's Part D claims, 2024
- Opioids7%1,109 of 17,060 claims
- Antibiotics4%759 of 17,060 claims
- Antipsychotics, patients 65 and over0%74 of 17,060 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: 13,9132024: 16,22017%
Drugs named by CMS: 180 in 2024, 170 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. Robert Leon Lynch II ranks in the 70th percentile for removal of skin lesions in Medicare
Dr. Lynch accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 38 procedures of removal of skin lesions by Dr. Lynch, more than 70% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lynch ranks in Medicare procedure volume
- Removal of skin lesions
- 70th percentile38 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal or shaving of skin growth: 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. Robert Leon Lynch II received $9,967 in industry payments from 2016 to 2025
CMS Open Payments shows 662 general payments to Dr. Lynch from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,442.
General payments to Dr. Lynch by program year, 2016 to 2025
General payments to Dr. Lynch by kind, 2016 to 2025
- Food and beverage$9,76698%
- Education$2012%
Companies that paid Dr. Lynch 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. Robert Leon Lynch II graduated from UNR Med
Dr. Lynch graduated from UNR Med in 1996.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Robert Leon Lynch II accepts plans from 15 insurance carriers
Dr. Lynch is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Lynch accepts, by number of carriers
- PPO9
- HMO7
- Medicare7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Leon Lynch II'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Robert Leon Lynch II
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. Robert Leon Lynch II's NPI number?
Dr. Robert Leon Lynch II's NPI number is 1184644031. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Leon Lynch II?
Dr. Robert Leon Lynch II is an internist in Oakdale, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert Leon Lynch II practice?
Dr. Lynch practices at 350 S Oak Ave, Oakdale, CA 95361. Dr. Lynch's primary practice is Oak Valley Hospital in Oakdale, California, part of Oak Valley Hospital District. Dmand AI also links Dr. Lynch to 2 home health agencies.
What is Dr. Robert Leon Lynch II's office phone number?
The practice phone on file for Dr. Lynch is (209) 847-3011.
What is Dr. Robert Leon Lynch II's medical license number?
Dr. Lynch holds California license A065277.
Which hospitals is Dr. Robert Leon Lynch II affiliated with?
Dr. Lynch practices at Oak Valley Hospital in Oakdale, California. Dr. Lynch is also affiliated with Memorial Medical Center.
Does Dr. Robert Leon Lynch II accept Medicare?
Yes. CMS data shows Dr. Lynch billed Medicare for 793 services in 2024, and Dr. Lynch accepts Medicare assignment.
How many Medicare patients does Dr. Robert Leon Lynch II see?
CMS counts 270 Medicare patients who saw Dr. Lynch in 2024, with an average age of 75.
Is Dr. Robert Leon Lynch II board certified?
Yes. Dr. Lynch is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Robert Leon Lynch II bill to Medicare?
In 2024, Dr. Lynch's most billed Medicare services were office visit, established patient (99213), lab and pathology test (81002) and heart test or procedure (93000).
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Where did Dr. Robert Leon Lynch II go to medical school?
Dr. Lynch graduated from UNR Med in 1996.
What drugs does Dr. Robert Leon Lynch II prescribe most?
In 2024 Medicare Part D data, Dr. Lynch's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Hydrocodone-Acetaminophen.
Has Dr. Robert Leon Lynch II received payments from drug or device companies?
CMS Open Payments shows $9,967 in general payments to Dr. Lynch from 39 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Robert Leon Lynch II been practicing?
Dr. Lynch graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Robert Leon Lynch II accept?
Dr. Lynch is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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