Dr. Natalie Wakefield Vassar, MD

  • Tulsa, OK
  • Psychiatrist
NPI1346495124
Medicare services, 2023
193
Part D claims, 2024
28
Hospital affiliations
1
Industry payments
$2,523
State license
1
Practice address
6655 South Yale Avenue, Tulsa, OK 74136
Practice phone
Call (918) 481-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Laureate Psychiatric Clinic and Hospital

Hospital · Tulsa, Oklahoma

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Dr. Natalie Wakefield Vassar is a psychiatrist in Tulsa, Oklahoma

Dr. Vassar practices at Laureate Psychiatric Clinic and Hospital in Tulsa, Oklahoma, part of Saint Francis Health System.

Dr. Vassar's NPI, 1346495124, was assigned on November 20, 2008. Dr. Vassar graduated from Oklahoma State University Center for Health Sciences in 2006. Dr. Vassar holds Oklahoma license 26454.

NPI and contact details
NPI enumeration date
November 20, 2008
NPI status
Active
Practice phone
(918) 481-4000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
44
Medical school graduation
2006

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

Dr. Natalie Wakefield Vassar practices at Laureate Psychiatric Clinic and Hospital in Tulsa, Oklahoma

Dr. Vassar's primary practice is Laureate Psychiatric Clinic and Hospital, at 6655 South Yale Avenue, Tulsa, OK 74136 in Tulsa County. The practice phone is (918) 481-4000.

Source: Dmand AI Affiliation Data

Dr. Natalie Wakefield Vassar is affiliated with 1 site of care

Dr. Vassar's primary practice is Laureate Psychiatric Clinic and Hospital in Tulsa, Oklahoma, part of Saint Francis Health System.

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

Dmand AI tracks the EHR system at Dr. Natalie Wakefield Vassar's practice

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

EHR by site
SiteEHR vendor and product
Laureate Psychiatric Clinic and HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Natalie Wakefield Vassar is one of 341 psychiatrists in Oklahoma

Psychiatry is Dr. Vassar's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Vassar is licensed in Oklahoma.

Specialties and state licenses

  • Psychiatry, OklahomaPrimaryLicense 26454 · taxonomy 2084P0800X

Psychiatrists near Dr. Vassar

Counts of psychiatrists 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. Natalie Wakefield Vassar billed Medicare for 193 services in 2023

CMS data shows 193 Medicare services from Dr. Vassar across 1 procedure code in 2023, all of them office visits. Medicare paid $15,390 for them. Every service was in an office.

Medicare services, 2023193
Paid by Medicare$15,390
Procedure codes1

Dr. Vassar's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 2742023: 19330%

Dr. Vassar compared with the Oklahoma median for psychiatrists, 2023

  • Dr. Vassar
  • Oklahoma median
Medicare services
193vs 15822% above
Part D claims
1,183vs 2884.1 times

Medians across 333 psychiatrists in Oklahoma with Dmand AI profiles that report each measure.

Dr. Vassar's most billed Medicare procedure codes, 2023

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. Vassar

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

Dr. Natalie Wakefield Vassar's patients have a median age of 47

Across all payers, Dmand AI patient panel data puts Dr. Vassar's median patient age at 47, with 67% women.

Dr. Vassar's patients across all payers

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

Patient panel by age, all payers

Median age 47

Patient panel by sex, all payers

  • Women67%
  • Men33%

Source: Dmand AI Patient Panel Data

Dr. Natalie Wakefield Vassar wrote 28 Medicare Part D claims in 2024

In 2024, Dr. Vassar wrote 28 Medicare Part D claims for 17 patients. 93% of them were for generic drugs. They cover 36 drugs, with $155,636 in total drug cost. In 2022, CMS named 1,671 claims across 43 drugs.

Part D claims, 202428
Drugs named by CMS36
Total drug cost$155,636
Part D patients17

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

  • Generic26 claims93%
  • Brand-name and other2 claims7%

Dr. Vassar's most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 1,6712023: 1,18329%

Drugs named by CMS: 36 in 2023, 43 in 2022.

See all prescribing by Dr. Vassar

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. Natalie Wakefield Vassar received $2,523 in industry payments from 2016 to 2023

CMS Open Payments shows 208 general payments to Dr. Vassar from 23 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 97% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $640.

General payments to Dr. Vassar by program year, 2016 to 2023

General payments to Dr. Vassar by kind, 2016 to 2023

$2.5Kin total
  • Food and beverage$2,45897%
  • Education$663%

Companies that paid Dr. Vassar the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Vassar

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

Dr. Natalie Wakefield Vassar graduated from Oklahoma State University Center for Health Sciences

Dr. Vassar graduated from Oklahoma State University Center for Health Sciences in 2006.

  1. Medical schoolOklahoma State University Center for Health Sciences

Source: Dmand AI Professional Profile Data

Sources for Dr. Natalie Wakefield Vassar'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 Data
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
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. Natalie Wakefield Vassar

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. Natalie Wakefield Vassar's NPI number?

Dr. Natalie Wakefield Vassar's NPI number is 1346495124. It was assigned on November 20, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Natalie Wakefield Vassar?

Dr. Natalie Wakefield Vassar is a psychiatrist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Natalie Wakefield Vassar practice?

Dr. Vassar practices at 6655 South Yale Avenue, Tulsa, OK 74136. Dr. Vassar's primary practice is Laureate Psychiatric Clinic and Hospital in Tulsa, Oklahoma, part of Saint Francis Health System.

What is Dr. Natalie Wakefield Vassar's office phone number?

The practice phone on file for Dr. Vassar is (918) 481-4000.

What is Dr. Natalie Wakefield Vassar's medical license number?

Dr. Vassar holds Oklahoma license 26454.

Which hospitals is Dr. Natalie Wakefield Vassar affiliated with?

Dr. Vassar practices at Laureate Psychiatric Clinic and Hospital in Tulsa, Oklahoma.

Does Dr. Natalie Wakefield Vassar accept Medicare?

Yes. CMS data shows Dr. Vassar billed Medicare for 193 services in 2023.

What services does Dr. Natalie Wakefield Vassar bill to Medicare?

In 2023, Dr. Vassar's most billed Medicare services were office visit, established patient (99214).

Where did Dr. Natalie Wakefield Vassar go to medical school?

Dr. Vassar graduated from Oklahoma State University Center for Health Sciences in 2006.

What drugs does Dr. Natalie Wakefield Vassar prescribe most?

In 2023 Medicare Part D data, Dr. Vassar's most prescribed drugs by claims were Duloxetine HCl, Lamotrigine and Bupropion XL.

Has Dr. Natalie Wakefield Vassar received payments from drug or device companies?

CMS Open Payments shows $2,523 in general payments to Dr. Vassar from 23 companies from 2016 to 2023. The largest total came from Otsuka America Pharmaceutical, Inc.

How long has Dr. Natalie Wakefield Vassar been practicing?

Dr. Vassar graduated from medical school in 2006, 20 years ago.

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