Dr. Ann Mary M. Belek, MD

  • Vallejo, CA
  • Rheumatologist
NPI1780841197PAC ID2961673413
Part D claims, 2024
2,241
Hospital affiliations
2
Medical group
1
Insurance carriers
2
State license
1
Practice address
975 Sereno Dr, Vallejo, CA 94589
Practice phone
Call (707) 651-1000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Vallejo Medical Center

Hospital · Vallejo, California

See all 5 affiliations

Find Dr. Belek'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.

View contacts for free

Dr. Ann Mary M. Belek is a rheumatologist in Vallejo, California

Dr. Belek practices at Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente.

Dr. Belek's NPI, 1780841197, was assigned on May 22, 2008. Dr. Belek graduated from University Of Kentucky College Of Medicine in 2006. Dr. Belek holds California license A103125.

NPI and contact details
Medicare PAC ID
2961673413
NPI enumeration date
May 22, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(707) 651-1000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ann Mary M. Belek practices at Vallejo Medical Center in Vallejo, California

Dr. Belek's primary practice is Vallejo Medical Center, at 975 Sereno Dr, Vallejo, CA 94589 in Solano County. The practice phone is (707) 651-1000.

Source: Dmand AI Affiliation Data

Dr. Ann Mary M. Belek is affiliated with 4 sites of care and 1 medical group

Dr. Belek's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dr. Belek is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Belek to 1 more home health agency and 1 hospice, each named with a free account.

See all 5 affiliations for Dr. Belek

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ann Mary M. Belek's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Belek practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Vallejo Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Belek practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Ann Mary M. Belek is one of 821 rheumatologists in California

Rheumatology is Dr. Belek's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Belek is board certified in rheumatology by the American Board of Internal Medicine. Dr. Belek is licensed in California.

Specialties and state licenses

  • Rheumatology, CaliforniaPrimaryLicense A103125 · 2008 to 2026 · taxonomy 207RR0500X

Clinical focus

Dmand AI lists rheumatoid arthritis among the conditions Dr. Belek treats.

Rheumatologists near Dr. Belek

Counts of rheumatologists 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

Dr. Ann Mary M. Belek's patients have a median age of 61

Across all payers, Dmand AI patient panel data puts Dr. Belek's median patient age at 61, with 87% women.

Dr. Belek's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women87%
  • Men13%

Source: Dmand AI Patient Panel Data

Dr. Ann Mary M. Belek wrote 2,241 Medicare Part D claims in 2024

In 2024, Dr. Belek wrote 2,241 Medicare Part D claims for 514 patients. 73% of them were for generic drugs. CMS names the drug for 2,093 of them, across 27 drugs with 11 or more claims each, at $1,418,220 in total drug cost. In 2023, CMS named 2,137 claims across 32 drugs.

Part D claims, 20242,241
Drugs named by CMS27
Total drug cost$1.4M
Part D patients514

Dr. Belek's Part D claims by kind of drug, 2024

  • Generic1,640 claims73%
  • Brand-name588 claims26%
  • Other13 claims1%

Dr. Belek'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 Dr. Belek's Part D claims, 2024

  • Antibiotics1%30 of 2,241 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: 2,1372024: 2,0932%

Drugs named by CMS: 27 in 2024, 32 in 2023.

See all prescribing by Dr. Belek

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

How Dr. Ann Mary M. Belek takes part in Medicare

Dr. Belek accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

For MedTech and pharma teams

Find rheumatologists like Dr. Belek by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Ann Mary M. Belek has 1 award and honors on record

Dmand AI lists 1 award for Dr. Belek, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Belek

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Ann Mary M. Belek graduated from University Of Kentucky College Of Medicine

Dr. Belek graduated from University Of Kentucky College Of Medicine in 2006.

  1. Medical schoolUniversity Of Kentucky College Of Medicine
  2. Board certified in rheumatologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Ann Mary M. Belek accepts plans from 2 insurance carriers

Dr. Belek is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Kaiser Permanente
  • CMS Medicare

Plan types Dr. Belek accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ann Mary M. Belek's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ann Mary M. Belek

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ann Mary M. Belek's NPI number?

Dr. Ann Mary M. Belek's NPI number is 1780841197. It was assigned on May 22, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Ann Mary M. Belek?

Dr. Ann Mary M. Belek is a rheumatologist in Vallejo, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Ann Mary M. Belek practice?

Dr. Belek practices at 975 Sereno Dr, Vallejo, CA 94589. Dr. Belek's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dmand AI also links Dr. Belek to 1 home health agency and 1 hospice.

What is Dr. Ann Mary M. Belek's office phone number?

The practice phone on file for Dr. Belek is (707) 651-1000.

What is Dr. Ann Mary M. Belek's medical license number?

Dr. Belek holds California license A103125.

Which hospitals is Dr. Ann Mary M. Belek affiliated with?

Dr. Belek practices at Vallejo Medical Center in Vallejo, California. Dr. Belek is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights.

What medical group is Dr. Ann Mary M. Belek part of?

Dr. Belek is linked to The Permanente Medical Group, Inc.

Does Dr. Ann Mary M. Belek accept Medicare?

Yes. CMS lists Dr. Belek as accepting Medicare assignment.

Is Dr. Ann Mary M. Belek board certified?

Yes. Dr. Belek is board certified in rheumatology by the American Board of Internal Medicine.

Where did Dr. Ann Mary M. Belek go to medical school?

Dr. Belek graduated from University Of Kentucky College Of Medicine in 2006.

Show 3 more questionsShow fewer questions

What drugs does Dr. Ann Mary M. Belek prescribe most?

In 2024 Medicare Part D data, Dr. Belek's most prescribed drugs by claims were Prednisone, Methotrexate and Hydroxychloroquine Sulfate.

How long has Dr. Ann Mary M. Belek been practicing?

Dr. Belek graduated from medical school in 2006, 20 years ago.

What insurance does Dr. Ann Mary M. Belek accept?

Dr. Belek is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

Selling to rheumatology practices?

See rheumatologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)