NPPES file of Aug 9, 2026

Dena D. Tilley, N.P.

Obstetrics Physician · San Luis Obispo, CA

Dena D. Tilley, N.P. is an obstetrics physician with a practice address in San Luis Obispo, California, and NPI 1871705251, issued on May 5, 2007. Check the license (California 8147, as entered in NPPES) on the Medical Board of California; 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
1871705251
Name
Dena D. Tilley
Credential
N.P.
Primary taxonomy
Obstetrics Physician 207VX0000X
License number
8147 CA
Self-reported in NPPES; status is on the state search
Practice location
1551 Bishop St, San Luis Obispo, CA 93401
Phone
(805) 549-0402
Enumerated
May 5, 2007
Record last updated
Jan 28, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(805) 549-0465
Medicaid ID
GR0067850 CA
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.
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Also registered at 1551 Bishop St

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

  1. Elena AseltineAmbulatory Women's Health Care Registered Nurse1164560892
  2. Douglas Burgess, L.C.S.W.Clinical Social Worker1700992062
  3. Gilman Carr, D.D.S.Endodontics1427274885
  4. Rodolfo Castillo-Ruiz, MDFamily Medicine Physician1174549182
  5. Gary Cushing, M.D.Gastroenterology Physician1962483545
  6. Dieter EckertDiagnostic Radiology Physician1740206606

Verify Dena D. Tilley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 8147
    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 California license search

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2.7 times the Medicare Part D claims of the average obstetrics physician in 2024

588 Medicare Part D claims for 138 beneficiaries, against an average of 218 among the 863 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Dena Tilley588
  2. Specialty average218

Most prescribed

  1. Estradiol163 claims
  2. Progesterone88 claims
  3. Estradiol (Twice Weekly)55 claims
  4. Nystatin16 claims
  5. Levothyroxine Sodium15 claims
  6. Dotti14 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: $341.67

14 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 679 providers of this specialty with any payment received $826.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dena Tilley$341.67
  2. Specialty average$826.19

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

Dena D. Tilley among 174 obstetrics physician records in California

Dena D. Tilley, N.P. is one of 174 obstetrics physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 39% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2016 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics Physician providers in California

There are 174 obstetrics physician records in California.

The 8 obstetrics physician records with the nearest ZIP codes

  1. Heidi Freeman, M.D.San Luis Obispo, CA 934011629070008
  2. Aaron Kromhout, M.D.San Luis Obispo, CA 934011093717472
  3. Jennifer Giese, D.O.Bakersfield, CA 933141467851337
  4. Charnpal Mangat, MDBakersfield, CA 933091053529404
  5. Ramneet Mangat, MDBakersfield, CA 933011851316657
  6. Maya Ricci, FNPVisalia, CA 932911417169897
  7. Laura MartinezLancaster, CA 935341134866577
  8. Ravneet Thind, DOClovis, CA 936111013405612

Common questions

What is Dena D. Tilley, N.P.'s NPI number?

Dena D. Tilley, N.P.'s National Provider Identifier (NPI) is 1871705251, issued on May 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dena D. Tilley, N.P. located?

The NPPES record lists a practice address at 1551 Bishop St, San Luis Obispo, CA, 93401. Phone: (805) 549-0402. Providers update this record themselves, so call before visiting.

How can I verify Dena D. Tilley, N.P.'s license?

NPPES lists California license number 8147, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dena D. Tilley, N.P. prescribe under Medicare Part D?

In 2024, Dena D. Tilley, N.P. had 588 Medicare Part D claims for 138 beneficiaries; the average among obstetrics physician prescribers was 218. 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.