NPPES file of Aug 9, 2026

Nathan Parke Olafsen, MD

Physical Medicine & Rehabilitation Physician · Saint Louis, MO

Nathan Parke Olafsen, MD is a physical medicine & rehabilitation physician with a practice address in Saint Louis, Missouri, and NPI 1447516778, issued on Apr 11, 2012. Check the license (Missouri 2017016490, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447516778
Name
Nathan Parke Olafsen
Credential
MD
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
License number
2017016490 MO
Self-reported in NPPES; status is on the state search
Practice location
12634 Olive Blvd, Saint Louis, MO 63141
Phone
(314) 996-8099
Enumerated
Apr 11, 2012
Record last updated
Apr 17, 2025
Fax
(314) 996-8132
Medicaid ID
200043385 MO
Medicare enrollment
Enrolled (PECOS I20170912001584); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 12634 Olive Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amber Albus, CNOR, RNFARegistered Nurse First Assistant1619667078
  2. Susan Anderson, CRNACertified Registered Nurse Anesthetist1053339580
  3. Sahar Arnaout, CRNACertified Registered Nurse Anesthetist1548535032
  4. Jeffrey Baird, CRNACertified Registered Nurse Anesthetist1437542875
  5. Melissa Berg, FNPFamily Nurse Practitioner1447820121
  6. Alyssa Bjerk, NP-CFamily Nurse Practitioner1083019350

Verify Nathan Parke Olafsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2017016490
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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54% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

338 Medicare Part D claims for 102 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 63 claims were for opioids.

  1. Nathan Olafsen338
  2. Specialty average727

Most prescribed

  1. Gabapentin112 claims
  2. Meloxicam49 claims
  3. Hydrocodone-Acetaminophen47 claims
  4. Pregabalin41 claims
  5. Oxycodone-Acetaminophen14 claims
  6. Celecoxib13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,084.80

7 payments; by number, the most common kind was food and beverage; the largest payer was Checkpoint Surgical, Inc. The 3,895 providers of this specialty with any payment received $1,237.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Olafsen$2,084.80
  2. Specialty average$1,237.86

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nathan Parke Olafsen among 282 physical medicine & rehabilitation physician records in Missouri

Nathan Parke Olafsen, MD is one of 282 physical medicine & rehabilitation physician records with a practice address in Missouri. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 50% of them.

  • NPI issued2012 · 50% of these records are older, 47% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2012 · median 2008 among the 145 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physical Medicine & Rehabilitation Physician providers in Missouri

There are 282 physical medicine & rehabilitation physician records in Missouri.

The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes

  1. Alexander Chamessian, MD PHDCreve Coeur, MO 631411275194839
  2. Mariam Chowdhry, D.O.Saint Louis, MO 631411215108337
  3. James Doll, D.O.Creve Coeur, MO 631411134108830
  4. Bijoy Hegde, MDSaint Louis, MO 631411710036025
  5. Drupadi Kumar, M.D.Creve Coeur, MO 631411043328412
  6. Anthony Margherita, MDSt Louis, MO 631411750323028
  7. Jacob Perera, MDSaint Louis, MO 631411568031268
  8. Ruby Pien, PTACreve Coeur, MO 631411497321160

Common questions

What is Nathan Parke Olafsen, MD's NPI number?

Nathan Parke Olafsen, MD's National Provider Identifier (NPI) is 1447516778, issued on Apr 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Parke Olafsen, MD located?

The NPPES record lists a practice address at 12634 Olive Blvd, Saint Louis, MO, 63141. Phone: (314) 996-8099. Providers update this record themselves, so call before visiting.

How can I verify Nathan Parke Olafsen, MD's license?

NPPES lists Missouri license number 2017016490, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathan Parke Olafsen, MD prescribe under Medicare Part D?

In 2024, Nathan Parke Olafsen, MD had 338 Medicare Part D claims for 102 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.

What is Nathan Parke Olafsen, MD's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.