NPPES file of Aug 9, 2026

Ambujam R. Krishnan, MD

Hematology & Oncology Physician · Livonia, MI

Ambujam R. Krishnan, MD is a hematology & oncology physician with a practice address in Livonia, Michigan, and NPI 1548231749, issued on Jan 27, 2006. Check the license (Michigan AK043104, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1548231749
Name
Ambujam R. Krishnan
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
AK043104 MI
Self-reported in NPPES; status is on the state search
Practice location
15645 Farmington RD, Livonia, MI 48154
Phone
(734) 464-7600
Enumerated
Jan 27, 2006
Record last updated
Sep 11, 2025
Fax
(734) 464-9797
Medicaid ID
1783169 MI
Medicare enrollment
Enrolled (PECOS I20040617001469); accepts Medicare assignment
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 15645 Farmington RD

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

  1. Laith Jacob, MD, MBCHBInternal Medicine Physician1083064000
  2. Amy Widenbaum, MSW,LMSW,CSW,ACSWClinical Social Worker1558428276

Verify Ambujam R. Krishnan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license AK043104
    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 Michigan 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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2.1 times the Medicare Part D claims of the average hematology & oncology physician in 2024

1,811 Medicare Part D claims for 193 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 17 claims were for opioids.

  1. Ambujam Krishnan1,811
  2. Specialty average877

Most prescribed

  1. Amlodipine Besylate93 claims
  2. Atorvastatin Calcium71 claims
  3. Diclofenac Sodium68 claims
  4. Albuterol Sulfate Hfa63 claims
  5. Losartan Potassium61 claims
  6. Furosemide44 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: $31.50

1 payment: food and beverage; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ambujam Krishnan$31.50
  2. Specialty average$7,481.41

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

Bills Medicare through 2 group practices

  1. American Visiting Providers PLLCLivonia, MI
  2. Vps OF MI PLLCDetroit, MI

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

Ambujam R. Krishnan among 340 hematology & oncology physician records in Michigan

Ambujam R. Krishnan, MD is one of 340 hematology & oncology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1974 · median 2004 among the 206 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Michigan

There are 340 hematology & oncology physician records in Michigan.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Cortney Essak, MDLivonia, MI 481541437778446
  2. Elaine Chottiner, M.D.Plymouth, MI 481701992705701
  3. Stephen Goldfarb, D.O.Garden City, MI 481351497755177
  4. Hussein Gharib, MDDearborn, MI 481261790305399
  5. Ruby GuptaDearborn, MI 481261669707402
  6. Faisal Musa, MDDearborn, MI 481261811138787
  7. Renu Pandit, M.D.Dearborn, MI 481261558324129
  8. Oscar Signori, MDDearborn, MI 481261285601435

Common questions

What is Ambujam R. Krishnan, MD's NPI number?

Ambujam R. Krishnan, MD's National Provider Identifier (NPI) is 1548231749, issued on Jan 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ambujam R. Krishnan, MD located?

The NPPES record lists a practice address at 15645 Farmington RD, Livonia, MI, 48154. Phone: (734) 464-7600. Providers update this record themselves, so call before visiting.

How can I verify Ambujam R. Krishnan, MD's license?

NPPES lists Michigan license number AK043104, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ambujam R. Krishnan, MD prescribe under Medicare Part D?

In 2024, Ambujam R. Krishnan, MD had 1,811 Medicare Part D claims for 193 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.