NPPES file of Aug 9, 2026

Mark Einar Sylvester, M.D.

Addiction Psychiatry Physician · Lakewood Ranch, FL

Mark Einar Sylvester, M.D. is an addiction psychiatry physician with a practice address in Lakewood Ranch, Florida, and NPI 1336399344, issued on Sep 25, 2008. Check the license (Florida ME106957, as entered in NPPES) on the Florida health license search; 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
1336399344
Name
Mark Einar Sylvester
Credential
M.D.
Primary taxonomy
Addiction Psychiatry Physician 2084P0802X
License numbers
ME106957 FL
TRN-13165 FL
Self-reported in NPPES; status is on the state search
Practice location
6320 Venture Dr, Lakewood Ranch, FL 34202
Phone
(941) 363-0878
Enumerated
Sep 25, 2008
Record last updated
Mar 13, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(941) 363-0527
Medicare enrollment
Enrolled (PECOS I20121121000106); accepts Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 2008
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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8 nearest addiction psychiatry physician records → All 40 in Florida → Look up another NPI →

Also registered at 6320 Venture Dr

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

  1. Joann Fisher, ARNPGerontology Nurse Practitioner1235194903
  2. Ashley Hall, LCSWClinical Social Worker1477219699
  3. Sherri Jonas-Lazin, MDInternal Medicine Physician1164448718
  4. Michelle Pipino, ARNPFamily Nurse Practitioner1033352331

Verify Mark Einar Sylvester in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME106957    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 Florida license search

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59% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024

291 Medicare Part D claims for 39 beneficiaries, against an average of 716 among the 421 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Mark Sylvester291
  2. Specialty average716

Most prescribed

  1. Lisdexamfetamine Dimesylate23 claims
  2. Buprenorphine Hcl19 claims
  3. Mirtazapine19 claims
  4. Diazepam15 claims
  5. Oxcarbazepine15 claims
  6. Olanzapine12 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: $44.17

2 payments; by number, the most common kind was food and beverage; the largest payer was Tempus AI, Inc. The 170 providers of this specialty with any payment received $1,785.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Sylvester$44.17
  2. Specialty average$1,785.85

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

Mark Einar Sylvester among 40 addiction psychiatry physician records in Florida

Mark Einar Sylvester, M.D. is one of 40 addiction psychiatry physician records with a practice address in Florida. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.

  • NPI issued2008 · 60% of these records are older, 30% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2008 · median 1989 among the 18 with a school on file
  • Record last updated2013 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0802X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Psychiatry Physician providers in Florida

There are 40 addiction psychiatry physician records in Florida.

All 40 in Florida → Every provider in Lakewood Ranch → Addiction Psychiatry Physician nationwide →

The 8 addiction psychiatry physician records with the nearest ZIP codes

  1. William Charles, D.O.Crystal River, FL 344291861461832
  2. Zaheer Aslam, MDFort Myers, FL 339081609950468
  3. Harold Johnson, M.D.Lakeland, FL 338051720264906
  4. Syed Zaidi, M.DPinellas Park, FL 337811225242647
  5. Jason Fields, M.D.New Port Richey, FL 346531639289101
  6. Amira Athanasios, MDTrinity, FL 346551437788296
  7. Heather Oxentine, M.D.Bay Pines, FL 337441790042984
  8. Cynthia Morris, ARNPPalm Harbor, FL 346831134761802

Common questions

What is Mark Einar Sylvester, M.D.'s NPI number?

Mark Einar Sylvester, M.D.'s National Provider Identifier (NPI) is 1336399344, issued on Sep 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mark Einar Sylvester, M.D. located?

The NPPES record lists a practice address at 6320 Venture Dr, Lakewood Ranch, FL, 34202. Phone: (941) 363-0878. Providers update this record themselves, so call before visiting.

How can I verify Mark Einar Sylvester, M.D.'s license?

NPPES lists Florida license number ME106957, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Einar Sylvester, M.D. prescribe under Medicare Part D?

In 2024, Mark Einar Sylvester, M.D. had 291 Medicare Part D claims for 39 beneficiaries; the average among addiction psychiatry physician prescribers was 716. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.