Dr. Robert Charles Kollmorgen, DO

  • Fresno, CA
  • Orthopedic surgeon
NPI1760621759PAC ID1557588142
Medicare services, 2024
1,827
Medicare patients, 2024
306
Part D claims, 2024
54
Publications
25
Hospital affiliations
1
Practice address
2210 E Illinois Ave, Fresno, CA 93701
Practice phone
Call (559) 320-0531
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Central California Faculty Medical Group, Inc.

Fresno, California

See all 13 affiliations

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Dr. Robert Charles Kollmorgen is an orthopedic surgeon in Fresno, California

Dr. Kollmorgen practices at Central California Faculty Medical Group, Inc. in Fresno, California.

Dr. Kollmorgen's NPI, 1760621759, was assigned on February 13, 2009. Dr. Kollmorgen graduated from Heritage College of Osteopathic Medicine in 2005. Dr. Kollmorgen holds California license 20A11856.

NPI and contact details
Medicare PAC ID
1557588142
NPI enumeration date
February 13, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(559) 320-0531
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
47
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Robert Charles Kollmorgen practices at Central California Faculty Medical Group, Inc. in Fresno, California

Dr. Kollmorgen's primary practice is Central California Faculty Medical Group, Inc., at 2210 E Illinois Ave, Fresno, CA 93701 in Fresno County. The practice phone is (559) 320-0531.

  • Central California Faculty Medical Group, Inc.
    2210 E Illinois Ave, Fresno, CA 93701 · Fresno CountyPhone(559) 320-0531

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Robert Charles Kollmorgen is affiliated with 10 sites of care and 3 medical groups

Dr. Kollmorgen's primary practice is Central California Faculty Medical Group, Inc. in Fresno, California. Dr. Kollmorgen is also affiliated with Clovis Community Medical Center. The medical group on file is Inspire Health Medical Group. Dmand AI also links Dr. Kollmorgen to 5 more home health agencies, 3 group practices and clinics and 2 medical groups, each named with a free account.

See all 13 affiliations for Dr. Kollmorgen

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Robert Charles Kollmorgen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kollmorgen practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Central California Faculty Medical Group, Inc.Available with a free account
+9 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Robert Charles Kollmorgen is one of 2,056 orthopedic surgeons in California

Orthopaedic surgery is Dr. Kollmorgen's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Kollmorgen is board certified in orthopedic sports medicine by the AOA Board of Orthopedic Surgery. Dr. Kollmorgen is licensed in California.

Specialties and state licenses

  • Orthopaedic surgery, CaliforniaPrimaryLicense 20A11856 · taxonomy 207X00000X

Clinical focus

Dmand AI lists arthritis, enthesopathy in arms, hip replacement, joint pain, lower back pain, nerve damage, pelvic and hip fracture and rotator cuff injury among the conditions Dr. Kollmorgen treats.

Orthopedic surgeons near Dr. Kollmorgen

Counts of orthopedic surgeons 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 Charles Kollmorgen billed Medicare for 1,827 services in 2024

CMS data shows 1,827 Medicare services from Dr. Kollmorgen across 14 procedure codes in 2024, for 306 Medicare patients. Medicare paid $104,297 for them.

Medicare services, 20241,827
Medicare patients306
Paid by Medicare$104,297
Procedure codes14

Dr. Kollmorgen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 4572024: 972113%
Office and hospital visits
2023: 3252024: 40424%
Imaging
2023: 2052024: 24821%
Surgery
2023: 1282024: 18948%
Other services
2023: 532024: 1474%

Where Dr. Kollmorgen's Medicare services took place, 2024

  • In an office1,76797%
  • In a facility603%

Dr. Kollmorgen compared with the California median for orthopedic surgeons, 2024

  • Dr. Kollmorgen
  • California median
Medicare services
1,827vs 6832.7 times
Medicare patients
306vs 21542% above
Part D claims
12vs 7083% below

Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.

Dr. Kollmorgen'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.

See all procedures by Dr. Kollmorgen

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Robert Charles Kollmorgen treated 306 Medicare patients in 2024, average age 72

CMS counts 306 Medicare patients who saw Dr. Kollmorgen in 2024. The largest group is 65 to 74, with 162 patients. 75% of them have arthritis, and 75% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kollmorgen's median patient age at 56, with 64% women.

Medicare patients, 2024306
Average age72
Average risk score1.02
Also on Medicaid17%

Dr. Kollmorgen's Medicare patients by age, 2024

Dr. Kollmorgen's Medicare patients by sex, 2024

  • Women21069%
  • Men9631%

Chronic conditions among Dr. Kollmorgen's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes36%
  5. Ischemic heart disease29%
  6. Chronic kidney disease26%
  7. Anxiety24%
  8. Mood disorders21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Kollmorgen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women64%
  • Men36%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Robert Charles Kollmorgen wrote 54 Medicare Part D claims in 2024

In 2024, Dr. Kollmorgen wrote 54 Medicare Part D claims for 33 patients. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $92 in total drug cost. In 2019, CMS named 31 claims across 2 drugs.

Part D claims, 202454
Drugs named by CMS1
Total drug cost$92
Part D patients33

Dr. Kollmorgen's most prescribed drugs by claims, 2020

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, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 312020: 1261%

Drugs named by CMS: 1 in 2020, 2 in 2019.

See all prescribing by Dr. Kollmorgen

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 Charles Kollmorgen ranks in the 92nd percentile for hip replacement in Medicare

Dr. Kollmorgen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 67 procedures of hip replacement by Dr. Kollmorgen, more than 92% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Kollmorgen ranks in Medicare procedure volume

Hip replacement
92nd percentile67 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Lower limb (leg) arthroscopy (minimally invasive joint repair): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 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 Charles Kollmorgen has 25 publications on record

Dmand AI links 25 papers to Dr. Kollmorgen, published from 2017 to 2024. 2020 was the busiest year, with 4. The most frequent topics are Arthroscopy, Hip Joint and Joint Instability. Dr. Kollmorgen has published most often in Cureus. Dr. Kollmorgen's most frequent co-authors are Joshua David Harris, MD, Parker B. Goodell, MD and Henry Matthew Dunn, MD.

Papers25
Years published2017 to 2024

Dr. Kollmorgen's papers by year, 2017 to 2024

Topics Dr. Kollmorgen writes about most

  • Arthroscopy
  • Hip Joint
  • Joint Instability
  • Acetabulum
  • Arthroplasty, Replacement, Hip
  • Femoracetabular Impingement
  • Osteotomy
  • Patient Reported Outcome Measures

Dr. Kollmorgen's most frequent co-authors

Recent publications by Dr. Kollmorgen

See all 25 publications and co-authors

See who Dr. Kollmorgen researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kollmorgen works with, so you can find a warm path to the right orthopedic surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Robert Charles Kollmorgen received $2,326 in industry payments from 2016 to 2024

CMS Open Payments shows 37 general payments to Dr. Kollmorgen from 18 drug and device companies from 2016 to 2024. Travel and lodging make up the largest share, 53% of the total. Stryker Corporation paid the most, $1,704.

General payments to Dr. Kollmorgen by program year, 2016 to 2024

General payments to Dr. Kollmorgen by kind, 2016 to 2024

$2.3Kin total
  • Travel and lodging$1,22353%
  • Food and beverage$1,10347%

Companies that paid Dr. Kollmorgen the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Kollmorgen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Robert Charles Kollmorgen graduated from Heritage College of Osteopathic Medicine

Dr. Kollmorgen graduated from Heritage College of Osteopathic Medicine in 2005. Dr. Kollmorgen is a member of AOA.

  1. Medical schoolHeritage College of Osteopathic Medicine
  2. Board certified in orthopedic sports medicineAOA Board of Orthopedic Surgery
  3. Board certified in orthopedic surgeryAOA Board of Orthopedic Surgery
  4. Board certified in 2011 - 2027CA State License
  5. Board certified in 2005 - 2017IL State License
  6. Board certified in 2016 - 2018NC State License
  7. Board certified in 2014 - 2018OH State License
  8. Board certified in 2011 - 2017WI State License

Source: Dmand AI Professional Profile Data

Dr. Robert Charles Kollmorgen accepts plans from 16 insurance carriers

Dr. Kollmorgen is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +8 more carriersWith a free account

Plan types Dr. Kollmorgen accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO7
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Robert Charles Kollmorgen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Robert Charles Kollmorgen

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 Charles Kollmorgen's NPI number?

Dr. Robert Charles Kollmorgen's NPI number is 1760621759. It was assigned on February 13, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Robert Charles Kollmorgen?

Dr. Robert Charles Kollmorgen is an orthopedic surgeon in Fresno, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).

Where does Dr. Robert Charles Kollmorgen practice?

Dr. Kollmorgen practices at 2210 E Illinois Ave, Fresno, CA 93701. Dr. Kollmorgen's primary practice is Central California Faculty Medical Group, Inc. in Fresno, California. Dmand AI also links Dr. Kollmorgen to 5 home health agencies, 3 group practices and clinics and 2 medical groups.

What is Dr. Robert Charles Kollmorgen's office phone number?

The practice phone on file for Dr. Kollmorgen is (559) 320-0531.

What is Dr. Robert Charles Kollmorgen's medical license number?

Dr. Kollmorgen holds California license 20A11856.

Which hospitals is Dr. Robert Charles Kollmorgen affiliated with?

Dr. Kollmorgen is affiliated with Clovis Community Medical Center.

What medical group is Dr. Robert Charles Kollmorgen part of?

Dr. Kollmorgen is linked to Inspire Health Medical Group. Dmand AI links Dr. Kollmorgen to 2 more medical groups.

Does Dr. Robert Charles Kollmorgen accept Medicare?

Yes. CMS data shows Dr. Kollmorgen billed Medicare for 1,827 services in 2024, and Dr. Kollmorgen accepts Medicare assignment.

How many Medicare patients does Dr. Robert Charles Kollmorgen see?

CMS counts 306 Medicare patients who saw Dr. Kollmorgen in 2024, with an average age of 72.

Is Dr. Robert Charles Kollmorgen board certified?

Yes. Dr. Kollmorgen is board certified in orthopedic sports medicine by the AOA Board of Orthopedic Surgery.

Show 8 more questionsShow fewer questions

What services does Dr. Robert Charles Kollmorgen bill to Medicare?

In 2024, Dr. Kollmorgen's most billed Medicare services were injected or infused drug (J3301), injected or infused drug (J0702) and office visit, established patient (99213).

Where did Dr. Robert Charles Kollmorgen go to medical school?

Dr. Kollmorgen graduated from Heritage College of Osteopathic Medicine in 2005.

What drugs does Dr. Robert Charles Kollmorgen prescribe most?

In 2020 Medicare Part D data, Dr. Kollmorgen's most prescribed drugs by claims were Meloxicam.

Has Dr. Robert Charles Kollmorgen received payments from drug or device companies?

CMS Open Payments shows $2,326 in general payments to Dr. Kollmorgen from 18 companies from 2016 to 2024. The largest total came from Stryker Corporation.

How long has Dr. Robert Charles Kollmorgen been practicing?

Dr. Kollmorgen graduated from medical school in 2005, 21 years ago.

Does Dr. Robert Charles Kollmorgen do research?

Dmand AI links 25 publications to Dr. Kollmorgen, published from 2017 to 2024.

Who does Dr. Robert Charles Kollmorgen publish with?

Dr. Kollmorgen's most frequent co-authors are Joshua David Harris, MD (5 shared papers), Parker B. Goodell, MD (2 shared papers) and Henry Matthew Dunn, MD (1 shared paper).

What insurance does Dr. Robert Charles Kollmorgen accept?

Dr. Kollmorgen is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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