Dr. Dean John Nickles, MD

  • Menlo Park, CA
  • Internist
NPI1255390050PAC ID9436139136
Medicare services, 2024
2,239
Medicare patients, 2024
576
Part D claims, 2024
6,805
Hospital affiliations
4
Industry payments
$17
Practice address
1300 Crane St, Menlo Park, CA 94025
Practice phone
Call (650) 498-6530
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Menlo Medical Clinic - Menlo Park (Crane St)

Mammography / Breast Imaging Center · Menlo Park, California

See all 17 affiliations

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Dr. Dean John Nickles is an internist in Menlo Park, California

Dr. Nickles practices at Menlo Medical Clinic - Menlo Park (Crane St) in Menlo Park, California.

Dr. Nickles' NPI, 1255390050, was assigned on March 21, 2006. Dr. Nickles graduated from West Virginia University School Of Medicine in 1975. Dr. Nickles holds California license G44039.

NPI and contact details
Medicare PAC ID
9436139136
NPI enumeration date
March 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 498-6530
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
77
Medical school graduation
1975

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

Dr. Dean John Nickles practices at Menlo Medical Clinic - Menlo Park (Crane St) in Menlo Park, California

Dr. Nickles' primary practice is Menlo Medical Clinic - Menlo Park (Crane St), at 1300 Crane St, Menlo Park, CA 94025. The practice phone is (650) 498-6530.

  • Menlo Medical Clinic - Menlo Park (Crane St)
    1300 Crane St, Menlo Park, CA 94025Phone(650) 498-6530

Source: Dmand AI Affiliation Data

Dr. Dean John Nickles is affiliated with 12 sites of care and 5 medical groups

Dr. Nickles' primary practice is Menlo Medical Clinic - Menlo Park (Crane St) in Menlo Park, California. Dr. Nickles is also affiliated with Stanford Hospital at 300 Pasteur Drive. The medical group on file is Stanford Medicine Partners. Dmand AI also links Dr. Nickles to 3 more hospitals, 4 medical groups, 3 group practices and clinics, 3 home health agencies and 1 skilled nursing facility, each named with a free account. Dr. Nickles' employer is on file too: a breast imaging center.

See all 17 affiliations for Dr. Nickles

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Dean John Nickles' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nickles practices, 12 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Menlo Medical Clinic - Menlo Park (Crane St)Available with a free account
+11 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Dean John Nickles is one of 16,751 internists in California

Internal medicine is Dr. Nickles' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nickles is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Nickles' licenses on file in 3 states: California, Florida and West Virginia.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G44039 · 1981 to 2026 · taxonomy 207R00000X
  • Florida license2014 to 2016
  • West Virginia license1980 to 1983

Clinical focus

Dmand AI lists acid reflux, acute mini-stroke (TIA), acute skin infection, adjustment disease, alzheimer's disease, aneurysm, anxiety and arteritis among the conditions Dr. Nickles treats.

Internists near Dr. Nickles

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. Dean John Nickles billed Medicare for 2,239 services in 2024

CMS data shows 2,239 Medicare services from Dr. Nickles across 14 procedure codes in 2024, for 576 Medicare patients. Medicare paid $158,855 for them. Every service was in an office.

Medicare services, 20242,239
Medicare patients576
Paid by Medicare$158,855
Procedure codes14

Dr. Nickles' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 9152024: 1,15626%
Other services
2023: 2942024: 874197%
Tests and treatments
2023: 02024: 209

Dr. Nickles compared with the California median for internists, 2024

  • Dr. Nickles
  • California median
Medicare services
2,239vs 3616.2 times
Medicare patients
576vs 1513.8 times
Part D claims
6,103vs 42114.5 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Nickles' 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. Nickles

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

Dr. Dean John Nickles treated 576 Medicare patients in 2024, average age 78

CMS counts 576 Medicare patients who saw Dr. Nickles in 2024. The largest group is 75 to 84, with 268 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 4% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nickles' median patient age at 68, with 47% women.

Medicare patients, 2024576
Average age78
Average risk score0.99
Also on Medicaid4%

Dr. Nickles' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Nickles' Medicare patients by sex, 2024

  • Women22339%
  • Men35361%

Chronic conditions among Dr. Nickles' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure70%
  3. Arthritis40%
  4. Chronic kidney disease24%
  5. Ischemic heart disease24%
  6. Diabetes20%
  7. Atrial fibrillation19%
  8. Cancer18%

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

Dr. Nickles' 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

  • Women47%
  • Men46%

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

Dr. Dean John Nickles wrote 6,805 Medicare Part D claims in 2024

In 2024, Dr. Nickles wrote 6,805 Medicare Part D claims for 592 patients. 89% of them were for generic drugs. CMS names the drug for 6,103 of them, across 105 drugs with 11 or more claims each, at $513,398 in total drug cost. In 2023, CMS named 5,924 claims across 97 drugs.

Part D claims, 20246,805
Drugs named by CMS105
Total drug cost$513,398
Part D patients592

Dr. Nickles' Part D claims by kind of drug, 2024

  • Generic6,058 claims89%
  • Brand-name and other747 claims11%

Dr. Nickles' 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. Nickles' Part D claims, 2024

  • Opioids1%59 of 6,805 claims
  • Antibiotics1%76 of 6,805 claims
  • Antipsychotics, patients 65 and over1%47 of 6,805 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: 5,9242024: 6,1033%

Drugs named by CMS: 105 in 2024, 97 in 2023.

See all prescribing by Dr. Nickles

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. Dean John Nickles offers telehealth to Medicare patients

Dr. Nickles accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nickles as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Dean John Nickles received $17 in industry payments in 2019

CMS Open Payments shows 1 general payment to Dr. Nickles from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $17.

Companies that paid Dr. Nickles the most, 2019 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Nickles

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

Dr. Dean John Nickles has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Nickles, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Nickles

  1. 2013
    • CMS Stage 1 EHR
  2. Undated
    • Checkbook Top Doc
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Dean John Nickles graduated from West Virginia University School Of Medicine

Dr. Nickles graduated from West Virginia University School Of Medicine in 1975.

  1. Medical schoolWest Virginia University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Dean John Nickles accepts plans from 8 insurance carriers

Dr. Nickles is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare

Plan types Dr. Nickles accepts, by number of carriers

  1. Medicare6
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Dean John Nickles'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Dean John Nickles

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. Dean John Nickles' NPI number?

Dr. Dean John Nickles' NPI number is 1255390050. It was assigned on March 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Dean John Nickles?

Dr. Dean John Nickles is an internist in Menlo Park, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Dean John Nickles practice?

Dr. Nickles practices at 1300 Crane St, Menlo Park, CA 94025. Dr. Nickles' primary practice is Menlo Medical Clinic - Menlo Park (Crane St) in Menlo Park, California. Dmand AI also links Dr. Nickles to 3 hospitals, 4 medical groups, 3 group practices and clinics, 3 home health agencies and 1 skilled nursing facility.

What is Dr. Dean John Nickles' office phone number?

The practice phone on file for Dr. Nickles is (650) 498-6530.

What is Dr. Dean John Nickles' medical license number?

Dr. Nickles holds California license G44039, one of the licenses on file in 3 states.

Which states has Dr. Dean John Nickles been licensed in?

Dmand AI has state licenses on file for Dr. Nickles in California (1981 to 2026), Florida (2014 to 2016) and West Virginia (1980 to 1983).

Which hospitals is Dr. Dean John Nickles affiliated with?

Dr. Nickles is affiliated with Stanford Hospital at 300 Pasteur Drive. Dmand AI links Dr. Nickles to 3 more hospitals.

What medical group is Dr. Dean John Nickles part of?

Dr. Nickles is linked to Stanford Medicine Partners. Dmand AI links Dr. Nickles to 4 more medical groups.

Does Dr. Dean John Nickles accept Medicare?

Yes. CMS data shows Dr. Nickles billed Medicare for 2,239 services in 2024, and Dr. Nickles accepts Medicare assignment.

Does Dr. Dean John Nickles offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Nickles as offering telehealth services.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Dean John Nickles see?

CMS counts 576 Medicare patients who saw Dr. Nickles in 2024, with an average age of 78.

Is Dr. Dean John Nickles board certified?

Yes. Dr. Nickles is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Dean John Nickles bill to Medicare?

In 2024, Dr. Nickles' most billed Medicare services were office visit, established patient (99213), medicare service (G2211) and medicare service (G0439).

Where did Dr. Dean John Nickles go to medical school?

Dr. Nickles graduated from West Virginia University School Of Medicine in 1975.

What drugs does Dr. Dean John Nickles prescribe most?

In 2024 Medicare Part D data, Dr. Nickles' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.

Has Dr. Dean John Nickles received payments from drug or device companies?

CMS Open Payments shows $17 in general payments to Dr. Nickles from 1 company from 2019 to 2019. The largest total came from Boston Scientific Corporation.

How long has Dr. Dean John Nickles been practicing?

Dr. Nickles graduated from medical school in 1975, 51 years ago.

What insurance does Dr. Dean John Nickles accept?

Dr. Nickles is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan 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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