NPPES file of Aug 9, 2026

Neeraja Nina Karwowska, MD, DDS

Oral & Maxillofacial Surgery (D.M.D.) · Alameda, CA

Neeraja Nina Karwowska, MD, DDS is an oral & maxillofacial surgery (d.m.d.) with a practice address in Alameda, California, and NPI 1972961043, issued on Feb 4, 2016. Check the license (California A182599, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1972961043
Name
Neeraja Nina Karwowska
Credential
MD, DDS
Primary taxonomy
Oral & Maxillofacial Surgery (D.M.D.) 204E00000X
License number
A182599 CA
Self-reported in NPPES; status is on the state search
Practice location
2525 Santa Clara Ave, Alameda, CA 94501
Phone
(510) 865-1114
Enumerated
Feb 4, 2016
Record last updated
May 24, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2525 Santa Clara Ave

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

  1. Wendy Liao, DDSOral & Maxillofacial Surgery (D.M.D.)1972764157

Verify Neeraja Nina Karwowska in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A182599
    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
Find the California 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

5% more Medicare Part D claims than the average oral & maxillofacial surgery (d.m.d.) in 2024

383 Medicare Part D claims for 133 beneficiaries, against an average of 366 among the 1,051 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 31 claims were for opioids.

  1. Neeraja Karwowska383
  2. Specialty average366

Most prescribed

  1. Chlorhexidine Gluconate133 claims
  2. Amoxicillin105 claims
  3. Ibuprofen74 claims
  4. Hydrocodone-Acetaminophen24 claims
  5. Azithromycin11 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.

Industry payments in 2024: $18.65

1 payment: food and beverage; the largest payer was Geistlich Pharma, North America, Inc. The 800 providers of this specialty with any payment received $1,463.03 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Neeraja Karwowska$18.65
  2. Specialty average$1,463.03

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

Neeraja Nina Karwowska among 154 oral & maxillofacial surgery (d.m.d.) records in California

Neeraja Nina Karwowska, MD, DDS is one of 154 oral & maxillofacial surgery (d.m.d.) records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 81% of them.

  • NPI issued2016 · 81% of these records are older, 13% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 16% of these records are
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 204E00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Oral & Maxillofacial Surgery (D.M.D.) providers in California

There are 154 oral & maxillofacial surgery (d.m.d.) records in California.

The 8 oral & maxillofacial surgery (d.m.d.) records with the nearest ZIP codes

  1. Wendy Liao, DDSAlameda, CA 945011972764157
  2. Francisco Pestana, D.M.D.American Canyon, CA 945031639219306
  3. Jennifer Liu, DDS MDFairfield, CA 945331922293935
  4. David Webb, D.D.S.Fairfield, CA 945331255359469
  5. Darin Johnston, D.D.S.Travis Afb, CA 945351659757250
  6. Jeffery Graves, DDSVallejo, CA 945911184601791
  7. Adam Marre, MD, DDSWalnut Creek, CA 945961013258441
  8. Arsalan Ahani, D.D.S, M.D.San Mateo, CA 944011215035696

Common questions

What is Neeraja Nina Karwowska, MD, DDS's NPI number?

Neeraja Nina Karwowska, MD, DDS's National Provider Identifier (NPI) is 1972961043, issued on Feb 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Neeraja Nina Karwowska, MD, DDS located?

The NPPES record lists a practice address at 2525 Santa Clara Ave, Alameda, CA, 94501. Phone: (510) 865-1114. Providers update this record themselves, so call before visiting.

How can I verify Neeraja Nina Karwowska, MD, DDS's license?

NPPES lists California license number A182599, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Neeraja Nina Karwowska, MD, DDS prescribe under Medicare Part D?

In 2024, Neeraja Nina Karwowska, MD, DDS had 383 Medicare Part D claims for 133 beneficiaries; the average among oral & maxillofacial surgery (d.m.d.) prescribers was 366. Part D covers Medicare prescriptions only.

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.