Dena D. Tilley, NP
- Medicare services, 2024
- 58
- Medicare patients, 2024
- 37
- Part D claims, 2024
- 588
- Hospital affiliations
- 2
- Industry payments
- $3,727
- Practice address
- 1400 E Church St, Santa Maria, CA 93454
- Practice phone
- Call (805) 739-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dena Tilley's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dena D. Tilley is an obstetrics physician in Santa Maria, California
Dena Tilley practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health.
Dena Tilley's NPI, 1871705251, was assigned on May 5, 2007. Dena Tilley holds California license 8147.
- NPI
- 1871705251NPI Registry (opens in a new tab)
- NPI enumeration date
- May 5, 2007
- NPI status
- Active
- Practice phone
- (805) 739-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dena D. Tilley practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California
Dena Tilley's primary practice is Dignity Health - Marian Regional Medical Center, at 1400 E Church St, Santa Maria, CA 93454 in Santa Barbara County. The practice phone is (805) 739-3100.
- Dignity Health - Marian Regional Medical Center1400 E Church St, Santa Maria, CA 93454 · Santa Barbara CountyPhone(805) 739-3100
Source: Dmand AI Affiliation Data
Dena D. Tilley is affiliated with 4 sites of care and 3 medical groups
Dena Tilley's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. The medical group on file is Community Health Centers of the Central Coast, Inc. Dmand AI also links Dena Tilley to 1 more hospital, 2 medical groups, 1 community health center and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dena D. Tilley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dena Tilley practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Marian Regional Medical Center | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dena D. Tilley is one of 164 obstetrics physicians in California
Obstetrics is Dena Tilley's primary specialty in the NPI Registry, under taxonomy code 207VX0000X. Dena Tilley is licensed in California.
Specialties and state licenses
- Obstetrics, CaliforniaPrimary
Clinical focus
Dmand AI lists adjustment disease, itchy rashes, lower back pain, pneumonia, underactive thyroid, UTI, vaginal infection and yeast infection among the conditions Dena Tilley treats.
Obstetrics physicians near Dena Tilley
Counts of obstetrics physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dena D. Tilley billed Medicare for 58 services in 2024
CMS data shows 58 Medicare services from Dena Tilley across 3 procedure codes in 2024, for 37 Medicare patients. Medicare paid $2,940 for them. Every service was in an office.
Dena Tilley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 842024: 3064%
- Office and hospital visits
- 2023: 1542024: 2882%
Dena Tilley compared with the California median for obstetrics physicians, 2024
- Dena Tilley
- California median
- Medicare services
- 58vs 5212% above
- Medicare patients
- 37vs 4110% below
- Part D claims
- 438vs 3412.9 times
Medians across 116 obstetrics physicians in California with Dmand AI profiles that report each measure.
Dena Tilley's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dena Tilley and other obstetrics physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dena D. Tilley treated 37 Medicare patients in 2024, average age 70
CMS counts 37 Medicare patients who saw Dena Tilley in 2024. 73% of them have high cholesterol, and 49% have high blood pressure. Their average risk score is 0.56, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dena Tilley's median patient age at 43, with 98% women.
Chronic conditions among Dena Tilley's Medicare patients, 2024
- High cholesterol73%
- High blood pressure49%
- Arthritis35%
Share of Medicare patients with each condition. A patient can have several.
Dena Tilley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dena D. Tilley wrote 588 Medicare Part D claims in 2024
In 2024, Dena Tilley wrote 588 Medicare Part D claims for 138 patients. 86% of them were for generic drugs. CMS names the drug for 438 of them, across 13 drugs with 11 or more claims each, at $28,226 in total drug cost. In 2023, CMS named 463 claims across 10 drugs.
Dena Tilley's Part D claims by kind of drug, 2024
- Generic503 claims86%
- Brand-name85 claims14%
Dena Tilley's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dena Tilley's Part D claims, 2024
- Antibiotics4%22 of 588 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4632024: 4385%
Drugs named by CMS: 13 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dena D. Tilley received $3,727 in industry payments from 2021 to 2025
CMS Open Payments shows 201 general payments to Dena Tilley from 38 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $680.
General payments to Dena Tilley by program year, 2021 to 2025
Companies that paid Dena Tilley the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dena D. Tilley's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dena D. Tilley
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dena D. Tilley's NPI number?
Dena D. Tilley's NPI number is 1871705251. It was assigned on May 5, 2007, and it is active in the NPI Registry.
What does Dena D. Tilley specialize in?
Dena D. Tilley is an obstetrics physician in Santa Maria, California. The primary specialty in the NPI Registry is Obstetrics Physician (taxonomy code 207VX0000X).
Where does Dena D. Tilley practice?
Dena Tilley practices at 1400 E Church St, Santa Maria, CA 93454. Dena Tilley's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Dena Tilley to 1 hospital, 2 medical groups, 1 community health center and 1 group practice or clinic.
What is Dena D. Tilley's office phone number?
The practice phone on file for Dena Tilley is (805) 739-3100.
What is Dena D. Tilley's medical license number?
Dena Tilley holds California license 8147.
Which hospitals is Dena D. Tilley affiliated with?
Dena Tilley practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California. Dmand AI links Dena Tilley to 1 more hospital.
What medical group is Dena D. Tilley part of?
Dena Tilley is linked to Community Health Centers of the Central Coast, Inc. Dmand AI links Dena Tilley to 2 more medical groups.
Does Dena D. Tilley accept Medicare?
Yes. CMS data shows Dena Tilley billed Medicare for 58 services in 2024.
How many Medicare patients does Dena D. Tilley see?
CMS counts 37 Medicare patients who saw Dena Tilley in 2024, with an average age of 70.
What services does Dena D. Tilley bill to Medicare?
In 2024, Dena Tilley's most billed Medicare services were office visit, established patient (99214), medicare service (G0101) and medicare temporary code (Q0091).
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What drugs does Dena D. Tilley prescribe most?
In 2024 Medicare Part D data, Dena Tilley's most prescribed drugs by claims were Estradiol, Progesterone and Estradiol (Twice Weekly).
Has Dena D. Tilley received payments from drug or device companies?
CMS Open Payments shows $3,727 in general payments to Dena Tilley from 38 companies from 2021 to 2025. The largest total came from Abbvie Inc.
How long has Dena D. Tilley been practicing?
Dena Tilley graduated from medical school in 1996, 30 years ago.
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