Dr. Paul E. Nicholas, MD

  • Santa Rosa, CA
  • Neurologist
NPI1699861344
Medicare services, 2021
242
Medicare patients, 2024
13
Part D claims, 2024
41
Industry payments
$44
Affiliated sites
1
Practice address
1165 Montgomery Dr, Santa Rosa, CA 95405
Practice phone
Call (707) 525-5300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Santa Rosa Memorial Hospital

Santa Rosa, California

See all 3 affiliations

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Dr. Paul E. Nicholas is a neurologist in Santa Rosa, California

Dr. Nicholas practices at Santa Rosa Memorial Hospital in Santa Rosa, California.

Dr. Nicholas' NPI, 1699861344, was assigned on October 4, 2006. Dr. Nicholas graduated from University Of Michigan Medical School in 2000. Dr. Nicholas holds California license A98793.

NPI and contact details
NPI enumeration date
October 4, 2006
NPI status
Active
Practice phone
(707) 525-5300
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
52
Medical school graduation
2000

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

Dr. Paul E. Nicholas practices at Santa Rosa Memorial Hospital in Santa Rosa, California

Dr. Nicholas' primary practice is Santa Rosa Memorial Hospital, at 1165 Montgomery Dr, Santa Rosa, CA 95405 in Sonoma County. The practice phone is (707) 525-5300.

  • Santa Rosa Memorial Hospital
    1165 Montgomery Dr, Santa Rosa, CA 95405 · Sonoma CountyPhone(707) 525-5300

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

Dr. Paul E. Nicholas is affiliated with 2 sites of care and 1 medical group

Dr. Nicholas' primary practice is Santa Rosa Memorial Hospital in Santa Rosa, California. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Nicholas to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Nicholas

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

Dmand AI tracks the EHR system at Dr. Paul E. Nicholas' practice

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

EHR by site
SiteEHR vendor and product
Santa Rosa Memorial HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Paul E. Nicholas is one of 2,207 neurologists in California

Neurology is Dr. Nicholas' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Nicholas is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Nicholas' licenses on file in 4 states: California, New Hampshire, Hawaii and Wisconsin.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense A98793 · 2007 to 2027 · taxonomy 2084N0400X
  • New Hampshire licenseSince 2011
  • Hawaii license2024 to 2026
  • Psychiatry, WisconsinLicense 47520 · 2004 to 2023 · taxonomy 2084P0800X

Neurologists near Dr. Nicholas

Counts of neurologists 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. Paul E. Nicholas billed Medicare for 242 services in 2021

CMS data shows 242 Medicare services from Dr. Nicholas across 2 procedure codes in 2021, for 13 Medicare patients. Medicare paid $6,882 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2021242
Medicare patients13
Paid by Medicare$6,882
Procedure codes2

Dr. Nicholas' Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Tests and treatments
2020: 3292021: 24226%
Office and hospital visits
2020: 642021: 0100%

Dr. Nicholas compared with the California median for neurologists, 2021

  • Dr. Nicholas
  • California median
Medicare services
242vs 40440% below
Medicare patients
13vs 19093% below
Part D claims
12vs 32496% below

Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.

Dr. Nicholas' most billed Medicare procedure codes, 2021

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. Paul E. Nicholas treated 13 Medicare patients in 2024, average age 59

CMS counts 13 Medicare patients who saw Dr. Nicholas in 2024. The largest group is 85 and over, with 0 patients. 75% of them have anxiety, and 75% have depression. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nicholas' median patient age at 67, with 63% women.

Medicare patients, 202413
Average age59
Average risk score1.13

Dr. Nicholas' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Nicholas' Medicare patients, 2024

  1. Anxiety75%
  2. Depression75%
  3. High cholesterol75%
  4. Mood disorders75%

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

Dr. Nicholas' patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women63%
  • Men34%

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

Dr. Paul E. Nicholas wrote 41 Medicare Part D claims in 2024

In 2024, Dr. Nicholas wrote 41 Medicare Part D claims for 16 patients. 98% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $311 in total drug cost. In 2020, CMS named 14 claims across 1 drug.

Part D claims, 202441
Drugs named by CMS1
Total drug cost$311
Part D patients16

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

  • Generic40 claims98%
  • Brand-name and other1 claims2%

Dr. Nicholas' most prescribed drugs by claims, 2021

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, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 142021: 1214%

Drugs named by CMS: 1 in 2021, 1 in 2020.

See all prescribing by Dr. Nicholas

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

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Dr. Paul E. Nicholas received $44 in industry payments in 2021

CMS Open Payments shows 2 general payments to Dr. Nicholas from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $44.

Companies that paid Dr. Nicholas the most, 2021 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Nicholas

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

Dr. Paul E. Nicholas graduated from University Of Michigan Medical School

Dr. Nicholas graduated from University Of Michigan Medical School in 2000.

  1. Medical schoolUniversity Of Michigan Medical School
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Paul E. Nicholas accepts plans from 7 insurance carriers

Dr. Nicholas 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, 7. 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
  • United Healthcare

Plan types Dr. Nicholas accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. POS2
  4. EPO1
  5. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Paul E. Nicholas'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 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)
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. Paul E. Nicholas

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 E. Nicholas' NPI number?

Dr. Paul E. Nicholas' NPI number is 1699861344. It was assigned on October 4, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Paul E. Nicholas?

Dr. Paul E. Nicholas is a neurologist in Santa Rosa, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Paul E. Nicholas practice?

Dr. Nicholas practices at 1165 Montgomery Dr, Santa Rosa, CA 95405. Dr. Nicholas' primary practice is Santa Rosa Memorial Hospital in Santa Rosa, California. Dmand AI also links Dr. Nicholas to 1 group practice or clinic.

What is Dr. Paul E. Nicholas' office phone number?

The practice phone on file for Dr. Nicholas is (707) 525-5300.

What is Dr. Paul E. Nicholas' medical license number?

Dr. Nicholas holds California license A98793, one of the licenses on file in 4 states.

Which states has Dr. Paul E. Nicholas been licensed in?

Dmand AI has state licenses on file for Dr. Nicholas in California (2007 to 2027), New Hampshire (since 2011), Hawaii (2024 to 2026) and Wisconsin (2004 to 2023).

What medical group is Dr. Paul E. Nicholas part of?

Dr. Nicholas is linked to St. Jude Heritage Medical Group.

Does Dr. Paul E. Nicholas accept Medicare?

Yes. CMS data shows Dr. Nicholas billed Medicare for 242 services in 2021.

How many Medicare patients does Dr. Paul E. Nicholas see?

CMS counts 13 Medicare patients who saw Dr. Nicholas in 2024, with an average age of 59.

Is Dr. Paul E. Nicholas board certified?

Yes. Dr. Nicholas is board certified in psychiatry by the American Board of Psychiatry and Neurology.

Show 6 more questionsShow fewer questions

What services does Dr. Paul E. Nicholas bill to Medicare?

In 2021, Dr. Nicholas' most billed Medicare services were psychiatric service (90853) and psychiatric service (90792).

Where did Dr. Paul E. Nicholas go to medical school?

Dr. Nicholas graduated from University Of Michigan Medical School in 2000.

What drugs does Dr. Paul E. Nicholas prescribe most?

In 2021 Medicare Part D data, Dr. Nicholas' most prescribed drugs by claims were Quetiapine Fumarate.

Has Dr. Paul E. Nicholas received payments from drug or device companies?

CMS Open Payments shows $44 in general payments to Dr. Nicholas from 1 company from 2021 to 2021. The largest total came from Abbvie Inc.

How long has Dr. Paul E. Nicholas been practicing?

Dr. Nicholas graduated from medical school in 2000, 26 years ago.

What insurance does Dr. Paul E. Nicholas accept?

Dr. Nicholas 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, 7. Check the plan with the practice before a visit.

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